Update ACR image in azure to latest from dockerhub

DevOps
#1

I have to write bash script which :

  1. connect azure pipeline to azure portal through managed identity.
  2. get the image tag form ACR whcih I have to update.
  3. check for the latest image availability on dockerhub, if latest image is available then change the current tag to latest.
    how can i do this thing in single script.
#2

Which part are you stuck on?

#3

I need full script for the same. I tried many scripts but didnt go through this.if possible please help me

#4

So first login to Azure with AZ CLI. Then pull the image and get the hash of the docker image:

docker inspect --format='{{.RepoDigests}}' nginx

Pull the other image and get the hash for that.
Compare if different, update the tag and push.

#5

ACR_NAME=“kacr”

Define the image name including repository and tag

IMAGE_NAME=“email/mgageemailinterface-test”

Log in to Azure using the Azure CLI (if not logged in already)

az login

Get the tag of the repository from the ACR image

TAG=$(az acr repository show-tags --name $ACR_NAME --repository $IMAGE_NAME --output tsv --query ‘[0]’)

Output the retrieved tag

echo “Tag of $IMAGE_NAME in $ACR_NAME: $TAG”
#FROM DockerHUB

Trivy image name

image_name=“aquasec/trivy”

Fetch tags from Docker Hub API

tags=$(curl -s “https://registry.hub.docker.com/v2/repositories/${image_name}/tags/” | jq -r ‘.results[].name’)

Extract latest tag

latest_tag=$(echo “$tags” | grep -v -E ‘alpha|beta’ | head -n 1)

Extract latest -1 tag

latest_minus_one_tag=$(echo “$tags” | grep -v -E ‘alpha|beta’ | head -n 2 | tail -n 1)

Output the results

echo “Latest tag of $image_name: $latest_tag”
echo “Latest -1 tag of $image_name: $latest_minus_one_tag”
In this i am not able to get the digest of the tag and comapre it.

#6

Post scripts in:

Code Blocks

I didn’t see a question in your post.

#7

Thanks for your reply ,now I am getting the output as per my requirements.