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102 lines
2.9 KiB
Bash
102 lines
2.9 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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# args: google-containers/busybox:latest
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# args: gcr.io/google-containers/busybox:latest
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#
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# Author: Hari Sekhon
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# Date: 2020-09-15 14:52:47 +0100 (Tue, 15 Sep 2020)
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#
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# https://github.com/HariSekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC1090
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. "$srcdir/lib/gcp.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Tags a given GCR docker image with it's creation Date and Timestamp
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without pulling and pushing the docker image
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The timestamp is the created time (either uploaded or created by Google Cloud Build)
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Tags are in the format:
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YYYY-MM-DD
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YYYY-MM-DDTHHMMSSZ (standard ISO UTC time without semi-colons which are invalid in docker tags)
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The timestamp will be normalized to UTC
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Requires GCloud SDK to be installed and configured
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[gcr.io/]<project_id>/<image>[:<tag>]"
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help_usage "$@"
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num_args 1 "$@"
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image_tag="$1"
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if ! [[ "$image_tag" =~ gcr\.io ]]; then
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image_tag="gcr.io/$image_tag"
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fi
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# $gcr_image_optional_tag_regex is defined in lib/gcp.sh
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# shellcheck disable=SC2154
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if ! [[ "$image_tag" =~ $gcr_image_optional_tag_regex ]]; then
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usage "unrecognized GCR image:tag name - should be in a format matching this regex: $gcr_image_optional_tag_regex"
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fi
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docker_image="${image_tag%%:*}"
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tag="${image_tag##*:}"
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if [ -z "$tag" ] ||
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[ "$tag" = "$docker_image" ] ||
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[ "$tag" = "$image_tag" ]; then
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tag="latest"
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fi
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timestamp="$(gcloud container images list-tags "$docker_image" --limit 10 --format='get(timestamp.datetime)' --filter="tags=$tag")"
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if [ -z "$timestamp" ]; then
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echo "Failed to determine timestamp from Cloud Build for image '$docker_image' with tag '$tag'"
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exit 1
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fi
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if ! [[ "$timestamp" =~ ^[[:digit:]]{4}-[[:digit:]]{2}-[[:digit:]]{2}[[:space:]][[:digit:]]{2}:[[:digit:]]{2}:[[:digit:]]{2}[+-][[:digit:]]{2}:[[:digit:]]{2}$ ]]; then
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echo "Cloud Build timestamp not in expect YYYY-MM-DD HH:MM:SS[+-]HH:MM format, API may have changed"
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exit 1
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fi
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if is_mac; then
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date(){
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gdate "$@"
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}
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fi
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# normalize to UTC
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timestamp="$(date --utc --date="$timestamp" '+%FT%H%M%SZ')"
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date="${timestamp%T*}"
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echo "tagging docker image $docker_image:$tag with extra tags: $date $timestamp"
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# --quiet otherwise prompts Y/n which would hang build
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gcloud container images add-tag --quiet \
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"$docker_image:$tag" \
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"$docker_image:$date" \
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"$docker_image:$timestamp"
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#"$docker_image:latest" # there is also gcr_tag_latest.sh adjacent now
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