Added script to mirror containers to OCIR

Author: alcampag

app-dev/devops-and-containers/ocir/README.md

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+# Mirror images to OCIR
+
+These scripts are supposed to be launched from the OCI Cloud Console.
+
+The user must have the permissions to create a Container Registry repository and to push images on it.
+
+To mirror all the images in a Helm chart repository, just type:
+```bash
+./mirror-helm-ocir.sh -c <helm-repo-name>/<chart-name>
+```
+The script will create all the required repository. But be sure to configure REMOTE_REGISTRY and COMPARTMENT_ID first directly in the script!
+
+The same script is also available if you want to mirror explicitly some images, by running:
+```bash
+./mirror-ocir-sh -i image1,image2
+```

app-dev/devops-and-containers/ocir/mirror-helm-ocir.sh

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+#!/bin/bash
+
+# RUN IN CLOUD SHELL!!!!
+
+REMOTE_REGISTRY="lhr.ocir.io" # Replace it with your own regional registry
+CREATE_OCIR_PUBLIC_REGISTRY=true
+COMPARTMENT_ID="ocid1.compartment.oc1..."   # Compartment where images will be created
+
+unset -v HELM_CHART;
+
+while getopts c: flag
+do
+    case "${flag}" in
+        c) HELM_CHART=${OPTARG};;
+        *) echo 'Error in command line parsing' >&2
+           exit 1
+    esac
+done
+
+if [ -z "$HELM_CHART" ]; then
+        echo 'Missing -c (helm chart)' >&2
+        exit 1
+fi
+
+# Extract image names and tags
+images=$(helm template $HELM_CHART | grep -oE 'image:[[:space:]]*[^[:space:]]+' | sed 's/image:[[:space:]]*//')
+# Remove duplicates
+images=$(echo "$images" | tr ' ' '\n' | sort -u | tr '\n' ' ')
+
+create_repo(){
+  #Checking if registry creation necessary
+  repo_id=$(oci artifacts container repository list --compartment-id "$COMPARTMENT_ID" --display-name "$1" --limit 1 --query data.items[0].id --raw-output);
+  # Create repo if it does not exist!
+  [ -z "$repo_id" ] && repo_id=$(oci artifacts container repository create --display-name "$1" --compartment-id "$COMPARTMENT_ID" --is-public $CREATE_OCIR_PUBLIC_REGISTRY --query data.id --raw-output);
+  # If repo_id is still empty, an error has occurred
+  [ -z "$repo_id" ] && exit 1
+}
+
+for image in $images; do
+
+  # Remove quotes and double quotes
+  image=${image//[\"\']/}
+
+  echo "Processing image: $image"
+  base_image="${image#*/}"
+  image_name="${base_image%%:*}"
+  image_tag="${base_image#*:}"
+
+  REPO_NAMESPACE=$(oci artifacts container configuration get --compartment-id "$COMPARTMENT_ID" --query data.namespace --raw-output);
+
+  create_repo "$image_name"
+
+  TOKEN=$(oci raw-request --http-method GET --target-uri "https://${REMOTE_REGISTRY}/20180419/docker/token" | jq -r .data.token);
+
+  skopeo copy "docker://$image" "docker://$REMOTE_REGISTRY/$REPO_NAMESPACE/$image_name:$image_tag" --multi-arch system --override-os "linux" --dest-creds BEARER_TOKEN:$TOKEN
+
+  echo "Mirrored $image to $REMOTE_REGISTRY/$REPO_NAMESPACE/$image_name:$image_tag"
+
+done

app-dev/devops-and-containers/ocir/mirror-ocir.sh

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+#!/bin/bash
+
+# RUN IN CLOUD SHELL!!!!
+
+REMOTE_REGISTRY="lhr.ocir.io" # Replace it with your own regional registry
+CREATE_OCIR_PUBLIC_REGISTRY=true
+COMPARTMENT_ID="ocid1.compartment.oc1..." # Compartment where images will be created
+
+unset -v IMAGES;
+
+while getopts i: flag
+do
+    case "${flag}" in
+        i) IMAGES=${OPTARG};;
+        *) echo 'Error in command line parsing' >&2
+           exit 1
+    esac
+done
+
+if [ -z "$IMAGES" ]; then
+        echo 'Missing -i (images array with comma separator)' >&2
+        exit 1
+fi
+
+# Extract image names and tags
+IMAGES=(${IMAGES//,/ })
+# Remove duplicates
+IMAGES=$(echo "$IMAGES" | tr ' ' '\n' | sort -u | tr '\n' ' ')
+
+create_repo(){
+  #Checking if registry creation necessary
+  repo_id=$(oci artifacts container repository list --compartment-id "$COMPARTMENT_ID" --display-name "$1" --limit 1 --query data.items[0].id --raw-output);
+  # Create repo if it does not exist!
+  [ -z "$repo_id" ] && repo_id=$(oci artifacts container repository create --display-name "$1" --compartment-id "$COMPARTMENT_ID" --is-public $CREATE_OCIR_PUBLIC_REGISTRY --query data.id --raw-output);
+  # If repo_id is still empty, an error has occurred
+  [ -z "$repo_id" ] && exit 1
+}
+
+for image in $IMAGES; do
+
+  # Remove quotes and double quotes
+  image=${image//[\"\']/}
+
+  echo "Processing image: $image"
+  base_image="${image#*/}"
+  image_name="${base_image%%:*}"
+  image_tag="${base_image#*:}"
+
+  REPO_NAMESPACE=$(oci artifacts container configuration get --compartment-id "$COMPARTMENT_ID" --query data.namespace --raw-output);
+
+  create_repo "$image_name"
+
+  TOKEN=$(oci raw-request --http-method GET --target-uri "https://${REMOTE_REGISTRY}/20180419/docker/token" | jq -r .data.token);
+
+  skopeo copy "docker://$image" "docker://$REMOTE_REGISTRY/$REPO_NAMESPACE/$image_name:$image_tag" --multi-arch system --override-os "linux" --dest-creds BEARER_TOKEN:$TOKEN
+
+  echo "Mirrored $image to $REMOTE_REGISTRY/$REPO_NAMESPACE/$image_name:$image_tag"
+
+done