How can I list and delete GCP AppEngine images from the command line?












1















I'd like to delete my old unused AppEngine images from Google Cloud Platform, so that I'm not charged for storing them.



I can manually list and delete the images created for my GCP AppEngine project from this URL:
https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID



(Obviously, replace GOOGLE_CLOUD_PROJECT_ID with an appropriate GCP project id.)



Is there a way to list them from the command line? e.g. via gcloud?



This doesn't work as I would expect:



$ gcloud compute images list --no-standard-images

Listed 0 items.


Neither does this:



$ gcloud container images list 

Listed 0 items.

Only listing images in gcr.io/GOOGLE_CLOUD_PROJECT_ID. Use --repository to list images in other repositories.


It's a little painful to go in and delete lots of these manually since each image under https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID/US/appengine is in a separate directory that I have to first click into to select the image and then click the delete button, and then go back out to the appengine directory and start the process again for any other images.






google-app-engine google-cloud-platform gcloud google-container-registry







share|improve this question

























  • I'm not a flex env user, but maybe try to see if gcloud app versions list|delete and/or gcloud app services list|delete can do what you want as a side effect of deleting versions/services.

    – Dan Cornilescu
    Nov 14 '18 at 2:44








  • 1





    @DanCornilescu, thanks, those commands match what I see at console.cloud.google.com/appengine/versions but when I delete an old version (via the website) it doesn't automatically delete the corresponding image.

    – Rohan Talip
    Nov 14 '18 at 5:21


















1















I'd like to delete my old unused AppEngine images from Google Cloud Platform, so that I'm not charged for storing them.



I can manually list and delete the images created for my GCP AppEngine project from this URL:
https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID



(Obviously, replace GOOGLE_CLOUD_PROJECT_ID with an appropriate GCP project id.)



Is there a way to list them from the command line? e.g. via gcloud?



This doesn't work as I would expect:



$ gcloud compute images list --no-standard-images

Listed 0 items.


Neither does this:



$ gcloud container images list 

Listed 0 items.

Only listing images in gcr.io/GOOGLE_CLOUD_PROJECT_ID. Use --repository to list images in other repositories.


It's a little painful to go in and delete lots of these manually since each image under https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID/US/appengine is in a separate directory that I have to first click into to select the image and then click the delete button, and then go back out to the appengine directory and start the process again for any other images.






google-app-engine google-cloud-platform gcloud google-container-registry







share|improve this question

























  • I'm not a flex env user, but maybe try to see if gcloud app versions list|delete and/or gcloud app services list|delete can do what you want as a side effect of deleting versions/services.

    – Dan Cornilescu
    Nov 14 '18 at 2:44








  • 1





    @DanCornilescu, thanks, those commands match what I see at console.cloud.google.com/appengine/versions but when I delete an old version (via the website) it doesn't automatically delete the corresponding image.

    – Rohan Talip
    Nov 14 '18 at 5:21
















1












1








1








I'd like to delete my old unused AppEngine images from Google Cloud Platform, so that I'm not charged for storing them.



I can manually list and delete the images created for my GCP AppEngine project from this URL:
https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID



(Obviously, replace GOOGLE_CLOUD_PROJECT_ID with an appropriate GCP project id.)



Is there a way to list them from the command line? e.g. via gcloud?



This doesn't work as I would expect:



$ gcloud compute images list --no-standard-images

Listed 0 items.


Neither does this:



$ gcloud container images list 

Listed 0 items.

Only listing images in gcr.io/GOOGLE_CLOUD_PROJECT_ID. Use --repository to list images in other repositories.


It's a little painful to go in and delete lots of these manually since each image under https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID/US/appengine is in a separate directory that I have to first click into to select the image and then click the delete button, and then go back out to the appengine directory and start the process again for any other images.






google-app-engine google-cloud-platform gcloud google-container-registry







share|improve this question
















I'd like to delete my old unused AppEngine images from Google Cloud Platform, so that I'm not charged for storing them.



I can manually list and delete the images created for my GCP AppEngine project from this URL:
https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID



(Obviously, replace GOOGLE_CLOUD_PROJECT_ID with an appropriate GCP project id.)



Is there a way to list them from the command line? e.g. via gcloud?



This doesn't work as I would expect:



$ gcloud compute images list --no-standard-images

Listed 0 items.


Neither does this:



$ gcloud container images list 

Listed 0 items.

Only listing images in gcr.io/GOOGLE_CLOUD_PROJECT_ID. Use --repository to list images in other repositories.


It's a little painful to go in and delete lots of these manually since each image under https://console.cloud.google.com/gcr/images/GOOGLE_CLOUD_PROJECT_ID/US/appengine is in a separate directory that I have to first click into to select the image and then click the delete button, and then go back out to the appengine directory and start the process again for any other images.






google-app-engine google-cloud-platform gcloud google-container-registry




google-app-engine google-cloud-platform gcloud google-container-registry






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Dec 24 '18 at 11:16









LundinCast

2,45341322




2,45341322










asked Nov 14 '18 at 2:00









Rohan TalipRohan Talip

715




715













  • I'm not a flex env user, but maybe try to see if gcloud app versions list|delete and/or gcloud app services list|delete can do what you want as a side effect of deleting versions/services.

    – Dan Cornilescu
    Nov 14 '18 at 2:44








  • 1





    @DanCornilescu, thanks, those commands match what I see at console.cloud.google.com/appengine/versions but when I delete an old version (via the website) it doesn't automatically delete the corresponding image.

    – Rohan Talip
    Nov 14 '18 at 5:21





















  • I'm not a flex env user, but maybe try to see if gcloud app versions list|delete and/or gcloud app services list|delete can do what you want as a side effect of deleting versions/services.

    – Dan Cornilescu
    Nov 14 '18 at 2:44








  • 1





    @DanCornilescu, thanks, those commands match what I see at console.cloud.google.com/appengine/versions but when I delete an old version (via the website) it doesn't automatically delete the corresponding image.

    – Rohan Talip
    Nov 14 '18 at 5:21



















I'm not a flex env user, but maybe try to see if gcloud app versions list|delete and/or gcloud app services list|delete can do what you want as a side effect of deleting versions/services.

– Dan Cornilescu
Nov 14 '18 at 2:44







I'm not a flex env user, but maybe try to see if gcloud app versions list|delete and/or gcloud app services list|delete can do what you want as a side effect of deleting versions/services.

– Dan Cornilescu
Nov 14 '18 at 2:44






1




1





@DanCornilescu, thanks, those commands match what I see at console.cloud.google.com/appengine/versions but when I delete an old version (via the website) it doesn't automatically delete the corresponding image.

– Rohan Talip
Nov 14 '18 at 5:21







@DanCornilescu, thanks, those commands match what I see at console.cloud.google.com/appengine/versions but when I delete an old version (via the website) it doesn't automatically delete the corresponding image.

– Rohan Talip
Nov 14 '18 at 5:21














2 Answers
2






active

oldest

votes


















2














The link to the Developer Console you provided refers to the Container Registry, where your container images are stored, including those created during App Engine Flexible deployments.



You can list these images by location using the following gcloud command:



gcloud container images list --repository=[HOSTNAME]/[PROJECT-ID]


where [HOSTNAME] is one of four options: gcr.io, us.gcr.io, eu.gcr.io, or asia.gcr.io.



You can then delete images using the following command:



gcloud container images delete [HOSTNAME]/[PROJECT-ID]/[IMAGE]@[IMAGE_DIGEST]


You'll find detailed information about it in the online documentation.






share|improve this answer
























  • Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

    – Rohan Talip
    Nov 14 '18 at 18:09



















2














Listing images



Thanks to LundinCast's answer, I used us.gcr.io as the hostname and I was able to do this:



$ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID

NAME

us.gcr.io/GCP_PROJECT_ID/appengine


Apparently AppEngine uses a nested repository:



$ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine

NAME

us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425

us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726

us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t162317

us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t132223

us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t150454

us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t184629

us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t205831

us.gcr.io/GCP_PROJECT_ID/appengine/DEF.20181113t163644


This didn't work as I expected though:



$ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425

Listed 0 items.


Instead, I had to do:



$ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 

DIGEST        TAGS    TIMESTAMP

c8e3797d36b2  latest  2018-11-10T12:57:58


Deleting images



According to the documentation for deleting images, it is possible to delete ...




  • An image identified by its digest

  • An image identified by its tag, and it has multiple tags


Deleting images by (implicit) tag



When I tried to delete the single version / tag, I was shown a prompt:



$ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 

WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425

Digests:

- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181

  Associated tags:

 - latest

Tags:

- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest

This operation will delete the tags and images identified by the 

digests above.



Do you want to continue (Y/n)?  n



ERROR: (gcloud.container.images.delete) Aborted by user.


This is a little problematic for writing a script or program that can delete old images automatically (although I could pipe the yes command into the gcloud container images delete IMAGE command); luckily there is a --quiet argument that can be used:



$ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 --quiet

WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425

Digests:

- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181

  Associated tags:

 - latest

Tags:

- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest

Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest].

Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181].


So, that worked.



Deleting images by digest



Trying again on another image, with the digest method of deleting images:



$ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726

DIGEST        TAGS    TIMESTAMP

4d860e73f85f  latest  2018-11-10T15:50:55


Surprise! You can't just use the digest as listed:



$ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f

ERROR: (gcloud.container.images.delete) [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f] digest must be of the form "sha256:<digest>".


This was a little odd (there's only one tag, "latest", and it's not even shown in the error) :



$ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f

ERROR: Tags:

ERROR: (gcloud.container.images.delete) This operation will implicitly delete the tags listed above. Please manually remove with the `untag` command or re-run with --force-delete-tags to confirm.


OK, let's use --force-delete-tags :



$ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags

Digests:

- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542

  Associated tags:

 - latest

This operation will delete the tags and images identified by the digests above.



Do you want to continue (Y/n)?  n



ERROR: (gcloud.container.images.delete) Aborted by user.


As before, let's use --quiet to prevent showing the prompt:



$ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags --quiet

Digests:

- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542

  Associated tags:

 - latest

Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726:latest].

Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542].


So, deleting by digest requires a more verbose command line.






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    2 Answers
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    2 Answers
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    The link to the Developer Console you provided refers to the Container Registry, where your container images are stored, including those created during App Engine Flexible deployments.



    You can list these images by location using the following gcloud command:



    gcloud container images list --repository=[HOSTNAME]/[PROJECT-ID]


    where [HOSTNAME] is one of four options: gcr.io, us.gcr.io, eu.gcr.io, or asia.gcr.io.



    You can then delete images using the following command:



    gcloud container images delete [HOSTNAME]/[PROJECT-ID]/[IMAGE]@[IMAGE_DIGEST]


    You'll find detailed information about it in the online documentation.






    share|improve this answer
























    • Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

      – Rohan Talip
      Nov 14 '18 at 18:09
















    2














    The link to the Developer Console you provided refers to the Container Registry, where your container images are stored, including those created during App Engine Flexible deployments.



    You can list these images by location using the following gcloud command:



    gcloud container images list --repository=[HOSTNAME]/[PROJECT-ID]


    where [HOSTNAME] is one of four options: gcr.io, us.gcr.io, eu.gcr.io, or asia.gcr.io.



    You can then delete images using the following command:



    gcloud container images delete [HOSTNAME]/[PROJECT-ID]/[IMAGE]@[IMAGE_DIGEST]


    You'll find detailed information about it in the online documentation.






    share|improve this answer
























    • Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

      – Rohan Talip
      Nov 14 '18 at 18:09














    2












    2








    2







    The link to the Developer Console you provided refers to the Container Registry, where your container images are stored, including those created during App Engine Flexible deployments.



    You can list these images by location using the following gcloud command:



    gcloud container images list --repository=[HOSTNAME]/[PROJECT-ID]


    where [HOSTNAME] is one of four options: gcr.io, us.gcr.io, eu.gcr.io, or asia.gcr.io.



    You can then delete images using the following command:



    gcloud container images delete [HOSTNAME]/[PROJECT-ID]/[IMAGE]@[IMAGE_DIGEST]


    You'll find detailed information about it in the online documentation.






    share|improve this answer













    The link to the Developer Console you provided refers to the Container Registry, where your container images are stored, including those created during App Engine Flexible deployments.



    You can list these images by location using the following gcloud command:



    gcloud container images list --repository=[HOSTNAME]/[PROJECT-ID]


    where [HOSTNAME] is one of four options: gcr.io, us.gcr.io, eu.gcr.io, or asia.gcr.io.



    You can then delete images using the following command:



    gcloud container images delete [HOSTNAME]/[PROJECT-ID]/[IMAGE]@[IMAGE_DIGEST]


    You'll find detailed information about it in the online documentation.







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Nov 14 '18 at 9:06









    LundinCastLundinCast

    2,45341322




    2,45341322













    • Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

      – Rohan Talip
      Nov 14 '18 at 18:09



















    • Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

      – Rohan Talip
      Nov 14 '18 at 18:09

















    Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

    – Rohan Talip
    Nov 14 '18 at 18:09





    Thanks, I missed that there were other options for the hostname. In my case, I needed to use us.gcr.io. There is a little more that I had to do; I'll put that in a separate answer.

    – Rohan Talip
    Nov 14 '18 at 18:09













    2














    Listing images



    Thanks to LundinCast's answer, I used us.gcr.io as the hostname and I was able to do this:



    $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID
    
NAME
    
us.gcr.io/GCP_PROJECT_ID/appengine


    Apparently AppEngine uses a nested repository:



    $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine
    
NAME
    
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
    
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
    
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t162317
    
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t132223
    
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t150454
    
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t184629
    
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t205831
    
us.gcr.io/GCP_PROJECT_ID/appengine/DEF.20181113t163644


    This didn't work as I expected though:



    $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
    
Listed 0 items.


    Instead, I had to do:



    $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
    
DIGEST        TAGS    TIMESTAMP
    
c8e3797d36b2  latest  2018-11-10T12:57:58


    Deleting images



    According to the documentation for deleting images, it is possible to delete ...




    • An image identified by its digest

    • An image identified by its tag, and it has multiple tags


    Deleting images by (implicit) tag



    When I tried to delete the single version / tag, I was shown a prompt:



    $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
    
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
    
Digests:
    
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
    
  Associated tags:
    
 - latest
    
Tags:
    
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
    
This operation will delete the tags and images identified by the 
    
digests above.
    

    
Do you want to continue (Y/n)?  n
    

    
ERROR: (gcloud.container.images.delete) Aborted by user.


    This is a little problematic for writing a script or program that can delete old images automatically (although I could pipe the yes command into the gcloud container images delete IMAGE command); luckily there is a --quiet argument that can be used:



    $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 --quiet
    
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
    
Digests:
    
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
    
  Associated tags:
    
 - latest
    
Tags:
    
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
    
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest].
    
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181].


    So, that worked.



    Deleting images by digest



    Trying again on another image, with the digest method of deleting images:



    $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
    
DIGEST        TAGS    TIMESTAMP
    
4d860e73f85f  latest  2018-11-10T15:50:55


    Surprise! You can't just use the digest as listed:



    $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f
    
ERROR: (gcloud.container.images.delete) [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f] digest must be of the form "sha256:<digest>".


    This was a little odd (there's only one tag, "latest", and it's not even shown in the error) :



    $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f
    
ERROR: Tags:
    
ERROR: (gcloud.container.images.delete) This operation will implicitly delete the tags listed above. Please manually remove with the `untag` command or re-run with --force-delete-tags to confirm.


    OK, let's use --force-delete-tags :



    $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags
    
Digests:
    
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
    
  Associated tags:
    
 - latest
    
This operation will delete the tags and images identified by the digests above.
    

    
Do you want to continue (Y/n)?  n
    

    
ERROR: (gcloud.container.images.delete) Aborted by user.


    As before, let's use --quiet to prevent showing the prompt:



    $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags --quiet
    
Digests:
    
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
    
  Associated tags:
    
 - latest
    
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726:latest].
    
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542].


    So, deleting by digest requires a more verbose command line.






    share|improve this answer






























      2














      Listing images



      Thanks to LundinCast's answer, I used us.gcr.io as the hostname and I was able to do this:



      $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID
      
NAME
      
us.gcr.io/GCP_PROJECT_ID/appengine


      Apparently AppEngine uses a nested repository:



      $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine
      
NAME
      
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
      
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
      
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t162317
      
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t132223
      
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t150454
      
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t184629
      
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t205831
      
us.gcr.io/GCP_PROJECT_ID/appengine/DEF.20181113t163644


      This didn't work as I expected though:



      $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
      
Listed 0 items.


      Instead, I had to do:



      $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
      
DIGEST        TAGS    TIMESTAMP
      
c8e3797d36b2  latest  2018-11-10T12:57:58


      Deleting images



      According to the documentation for deleting images, it is possible to delete ...




      • An image identified by its digest

      • An image identified by its tag, and it has multiple tags


      Deleting images by (implicit) tag



      When I tried to delete the single version / tag, I was shown a prompt:



      $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
      
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
      
Digests:
      
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
      
  Associated tags:
      
 - latest
      
Tags:
      
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
      
This operation will delete the tags and images identified by the 
      
digests above.
      

      
Do you want to continue (Y/n)?  n
      

      
ERROR: (gcloud.container.images.delete) Aborted by user.


      This is a little problematic for writing a script or program that can delete old images automatically (although I could pipe the yes command into the gcloud container images delete IMAGE command); luckily there is a --quiet argument that can be used:



      $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 --quiet
      
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
      
Digests:
      
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
      
  Associated tags:
      
 - latest
      
Tags:
      
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
      
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest].
      
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181].


      So, that worked.



      Deleting images by digest



      Trying again on another image, with the digest method of deleting images:



      $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
      
DIGEST        TAGS    TIMESTAMP
      
4d860e73f85f  latest  2018-11-10T15:50:55


      Surprise! You can't just use the digest as listed:



      $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f
      
ERROR: (gcloud.container.images.delete) [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f] digest must be of the form "sha256:<digest>".


      This was a little odd (there's only one tag, "latest", and it's not even shown in the error) :



      $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f
      
ERROR: Tags:
      
ERROR: (gcloud.container.images.delete) This operation will implicitly delete the tags listed above. Please manually remove with the `untag` command or re-run with --force-delete-tags to confirm.


      OK, let's use --force-delete-tags :



      $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags
      
Digests:
      
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
      
  Associated tags:
      
 - latest
      
This operation will delete the tags and images identified by the digests above.
      

      
Do you want to continue (Y/n)?  n
      

      
ERROR: (gcloud.container.images.delete) Aborted by user.


      As before, let's use --quiet to prevent showing the prompt:



      $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags --quiet
      
Digests:
      
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
      
  Associated tags:
      
 - latest
      
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726:latest].
      
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542].


      So, deleting by digest requires a more verbose command line.






      share|improve this answer




























        2












        2








        2







        Listing images



        Thanks to LundinCast's answer, I used us.gcr.io as the hostname and I was able to do this:



        $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID
        
NAME
        
us.gcr.io/GCP_PROJECT_ID/appengine


        Apparently AppEngine uses a nested repository:



        $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine
        
NAME
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t162317
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t132223
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t150454
        
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t184629
        
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t205831
        
us.gcr.io/GCP_PROJECT_ID/appengine/DEF.20181113t163644


        This didn't work as I expected though:



        $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
Listed 0 items.


        Instead, I had to do:



        $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
        
DIGEST        TAGS    TIMESTAMP
        
c8e3797d36b2  latest  2018-11-10T12:57:58


        Deleting images



        According to the documentation for deleting images, it is possible to delete ...




        • An image identified by its digest

        • An image identified by its tag, and it has multiple tags


        Deleting images by (implicit) tag



        When I tried to delete the single version / tag, I was shown a prompt:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
        
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
        
  Associated tags:
        
 - latest
        
Tags:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
        
This operation will delete the tags and images identified by the 
        
digests above.
        

        
Do you want to continue (Y/n)?  n
        

        
ERROR: (gcloud.container.images.delete) Aborted by user.


        This is a little problematic for writing a script or program that can delete old images automatically (although I could pipe the yes command into the gcloud container images delete IMAGE command); luckily there is a --quiet argument that can be used:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 --quiet
        
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
        
  Associated tags:
        
 - latest
        
Tags:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest].
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181].


        So, that worked.



        Deleting images by digest



        Trying again on another image, with the digest method of deleting images:



        $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
        
DIGEST        TAGS    TIMESTAMP
        
4d860e73f85f  latest  2018-11-10T15:50:55


        Surprise! You can't just use the digest as listed:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f
        
ERROR: (gcloud.container.images.delete) [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f] digest must be of the form "sha256:<digest>".


        This was a little odd (there's only one tag, "latest", and it's not even shown in the error) :



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f
        
ERROR: Tags:
        
ERROR: (gcloud.container.images.delete) This operation will implicitly delete the tags listed above. Please manually remove with the `untag` command or re-run with --force-delete-tags to confirm.


        OK, let's use --force-delete-tags :



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
        
  Associated tags:
        
 - latest
        
This operation will delete the tags and images identified by the digests above.
        

        
Do you want to continue (Y/n)?  n
        

        
ERROR: (gcloud.container.images.delete) Aborted by user.


        As before, let's use --quiet to prevent showing the prompt:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags --quiet
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
        
  Associated tags:
        
 - latest
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726:latest].
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542].


        So, deleting by digest requires a more verbose command line.






        share|improve this answer















        Listing images



        Thanks to LundinCast's answer, I used us.gcr.io as the hostname and I was able to do this:



        $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID
        
NAME
        
us.gcr.io/GCP_PROJECT_ID/appengine


        Apparently AppEngine uses a nested repository:



        $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine
        
NAME
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t162317
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t132223
        
us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181113t150454
        
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t184629
        
us.gcr.io/GCP_PROJECT_ID/appengine/default.20181108t205831
        
us.gcr.io/GCP_PROJECT_ID/appengine/DEF.20181113t163644


        This didn't work as I expected though:



        $ gcloud container images list --repository=us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
Listed 0 items.


        Instead, I had to do:



        $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
        
DIGEST        TAGS    TIMESTAMP
        
c8e3797d36b2  latest  2018-11-10T12:57:58


        Deleting images



        According to the documentation for deleting images, it is possible to delete ...




        • An image identified by its digest

        • An image identified by its tag, and it has multiple tags


        Deleting images by (implicit) tag



        When I tried to delete the single version / tag, I was shown a prompt:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 
        
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
        
  Associated tags:
        
 - latest
        
Tags:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
        
This operation will delete the tags and images identified by the 
        
digests above.
        

        
Do you want to continue (Y/n)?  n
        

        
ERROR: (gcloud.container.images.delete) Aborted by user.


        This is a little problematic for writing a script or program that can delete old images automatically (although I could pipe the yes command into the gcloud container images delete IMAGE command); luckily there is a --quiet argument that can be used:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425 --quiet
        
WARNING: Implicit ":latest" tag specified: us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181
        
  Associated tags:
        
 - latest
        
Tags:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425:latest].
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t125425@sha256:c8e3797d36b27599c91e231afd5521e6a1283319fce5a0fd978b7cdcdb1d4181].


        So, that worked.



        Deleting images by digest



        Trying again on another image, with the digest method of deleting images:



        $ gcloud container images list-tags us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726
        
DIGEST        TAGS    TIMESTAMP
        
4d860e73f85f  latest  2018-11-10T15:50:55


        Surprise! You can't just use the digest as listed:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f
        
ERROR: (gcloud.container.images.delete) [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@4d860e73f85f] digest must be of the form "sha256:<digest>".


        This was a little odd (there's only one tag, "latest", and it's not even shown in the error) :



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f
        
ERROR: Tags:
        
ERROR: (gcloud.container.images.delete) This operation will implicitly delete the tags listed above. Please manually remove with the `untag` command or re-run with --force-delete-tags to confirm.


        OK, let's use --force-delete-tags :



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
        
  Associated tags:
        
 - latest
        
This operation will delete the tags and images identified by the digests above.
        

        
Do you want to continue (Y/n)?  n
        

        
ERROR: (gcloud.container.images.delete) Aborted by user.


        As before, let's use --quiet to prevent showing the prompt:



        $ gcloud container images delete us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85f --force-delete-tags --quiet
        
Digests:
        
- us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542
        
  Associated tags:
        
 - latest
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726:latest].
        
Deleted [us.gcr.io/GCP_PROJECT_ID/appengine/ABC.20181110t154726@sha256:4d860e73f85fdddb485e85dc867653e3e6095a5225f4f670200c98ede10fb542].


        So, deleting by digest requires a more verbose command line.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 14 '18 at 19:02

























        answered Nov 14 '18 at 18:32









        Rohan TalipRohan Talip

        715




        715






























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            Dulmage-Mendelsohn matrix decomposition in Python

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            0 Matlab has a function called dmperm that computes the so-called Dulmage–Mendelsohn decomposition of a n x n matrix. From wikipedia, the Dulmage–Mendelsohn is a partition of the vertices of a bipartite graph into subsets, with the property that two adjacent vertices belong to the same subset if and only if they are paired with each other in a perfect matching of the graph. Looking both on scipy and numpy, I could not find this function, nor some similar version. Is it possible to implement it using basic linear algebra operations? Any idea if this is implemented in some Python package? python matlab linear-algebra graph-theory matrix-decomposition share | improve this question
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