Some docker useful commands

docker.md

Docker CLi

docker image

1. Update all images with local download tag

# 1. list images
# 2. split with the space, and filter out the first line, and the 2nd element is not "none", and finally combine the 1st and 2nd element
# 3. update the docker images and prune finally
docker image ls | \
    awk '(NR>1) && ($2!~/none/) {print $1":"$2}' | \
    xargs -L1 docker image pull; docker image prune -f

2. make all images not starting with harbor.test.com create a new tag with the starts harbor.test.com/3rd

docker image ls | \
    awk '(NR>1) && ($2!~/none/) && ($1!~/^harbor.test.com/) {print $1":"$2}' | \
    xargs -I @ docker image tag @ harbor.test.com/3rd/@

3. push all images

docker image ls | \
    awk '(NR>1) && ($2!~/none/) && ($1~/^harbor.test.com/) {print $1":"$2}' | \
    xargs -L1 docker image push

Notes

awk:

• NR>1: NR means Number of Record; NR>1 means only rows above 2 are processed (skipping the first row)
• $2!~/none/: the 2nd element should not be "none"
• $1!~/^harbor.test.com/: the 1st element should not start with "harbor.test.com"

xargs:

• -I @: let the args in the middle

Update images without the prefix harbor.test.com

docker image ls | \
    awk '(NR>1) && ($1!~/^harbor.test.com/) && ($2!~/none/) {print $1":"$2}' | \
    xargs -L1 docker image pull; docker image prune -f

Push all the images with the prefix harbor.test.com/3rd, then remove these images

docker image ls | \
    awk '(NR>1) && ($2!~/none/) && ($1~/^harbor.test.com\/3rd/) {print $1":"$2}' | \
    xargs -L1 docker image push; \
docker image ls | \
    awk '(NR>1) && ($2!~/none/) && ($1~/^harbor.test.com\/3rd/) {print $1":"$2}' | \
    xargs -L1 docker image rm; \
docker image prune -f