Nexus Repository Manager keep the last X docker images delete all other

clean_docker_nexus.sh

#!/bin/bash

REPO_URL="https://repository.xxx.net/repository/"
USER="admin"
PASSWORD="datpassword"

BUCKET="portal-docker"
KEEP_IMAGES=10

IMAGES=$(curl --silent -X GET -H 'Accept: application/vnd.docker.distribution.manifest.v2+json' -u ${USER}:${PASSWORD} "${REPO_URL}${BUCKET}/v2/_catalog" | jq .repositories | jq -r '.[]' )

echo ${IMAGES}

for IMAGE_NAME in ${IMAGES}; do
 echo ${IMAGE_NAME}

   TAGS=$(curl --silent -X GET -H 'Accept: application/vnd.docker.distribution.manifest.v2+json' -u ${USER}:${PASSWORD} "${REPO_URL}${BUCKET}/v2/${IMAGE_NAME}/tags/list" | jq .tags | jq -r '.[]' )
   
   TAG_COUNT=$(echo $TAGS | wc -w)
   
   let TAG_COUNT_DEL=${TAG_COUNT}-${KEEP_IMAGES}
   COUNTER=0
   
   echo "THERE ARE ${TAG_COUNT} IMAGES FOR ${IMAGE_NAME}"
   
   ## skip if smaller than keep
   if [ "${KEEP_IMAGES}" -gt "${TAG_COUNT}" ]
    then
      echo "There are only ${TAG_COUNT} Images for ${IMAGE_NAME} - nothing to delete"
      continue
   fi
   
   for TAG in ${TAGS}; do
    let COUNTER=COUNTER+1
    if [ "${COUNTER}" -gt "${TAG_COUNT_DEL}" ]
     then
      break;
    fi
    
    IMAGE_SHA=$(curl --silent -I -X GET -H 'Accept: application/vnd.docker.distribution.manifest.v2+json' -u ${USER}:${PASSWORD} "${REPO_URL}${BUCKET}/v2/${IMAGE_NAME}/manifests/$TAG" | grep Docker-Content-Digest | cut -d ":" -f3 | tr -d '\r')
    echo "DELETE ${TAG} ${IMAGE_SHA}";
    DEL_URL="${REPO_URL}${BUCKET}/v2/${IMAGE_NAME}/manifests/sha256:${IMAGE_SHA}"
    RET="$(curl --silent -k -X DELETE -H 'Accept: application/vnd.docker.distribution.manifest.v2+json' -u ${USER}:${PASSWORD} $DEL_URL)"
   
   done;
done;

Hello,
Thanks a lot for this gist, it was exactly what I was looking for !

Anyway I'm facing an issue with the storage on disk because the image is deleted in nexus (not visible in the UI) but the disk space does not decrease
Is there a way to really remove the image and layers from disk ? Am I missing a parameter in my Nexus configuration to really remove the images ?

My nexus version is 3.10 and even after running the "Docker - Delete unused manifests and images" task the disk space remains the same.

Thanks for your help.

Hello,

Can you please explain line 10 " jq .repositories | jq -r "

./nexuscleanup.sh: line 12: jq: command not found
./nexuscleanup.sh: line 12: jq: command not found
(23) Failed writing body

I got above error

Hello,

Can you please explain line 10 " jq .repositories | jq -r "

./nexuscleanup.sh: line 12: jq: command not found
./nexuscleanup.sh: line 12: jq: command not found
(23) Failed writing body

I got above error

Install jq on the machine

Hello, Thanks a lot for this gist, it was exactly what I was looking for !

Anyway I'm facing an issue with the storage on disk because the image is deleted in nexus (not visible in the UI) but the disk space does not decrease Is there a way to really remove the image and layers from disk ? Am I missing a parameter in my Nexus configuration to really remove the images ?

My nexus version is 3.10 and even after running the "Docker - Delete unused manifests and images" task the disk space remains the same.

Thanks for your help.

You may need to consider running a "Compact blob store" task -- https://help.sonatype.com/repomanager3/nexus-repository-administration/repository-management/cleanup-policies?_ga=2.95007263.285540370.1704304621-1985157648.1703700486

How can I add a filter to remove images that are older than two weeks?