Dockertags Save
a CLI tool for fetching container image tag information group by OS/ARCH
Project README
Show information of container images ordered by recently updated.
Now supporting Docker Hub, GitHub Container Repository (ghcr.io), GCR (Google Container Registry) and Amazon ECR (Elastic Container Registry).
Quick Start
$ brew install goodwithtech/r/dockertags
$ dockertags [IMAGE_NAME]
or
$ docker run --rm goodwithtech/dockertags [IMAGENAME]
When to Use
Make easy to fetch target tag in scheduled operation.
$ dockertags -limit 1 -format json <imagename> | jq -r .[0].tags[0]
...output tag...
# Scan a latest container image with https://github.com/aquasecurity/trivy
$ export IMAGENAME=<imagename>
$ trivy $IMAGENAME:$(dockertags -limit 1 -format json $IMAGENAME | jq -r .[0].tags[0])
Examples
$ dockertags alpine
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
| TAG | SIZE | DIGEST | OS/ARCH | CREATED AT | UPLOADED AT |
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
| 3.9 | 2.7M | fa5361fbf636 | linux/ppc64le | NULL | 2020-01-23T17:42:13Z |
| 3.9.5 | 2.6M | c7b3e8392e08 | linux/386 | | |
| | 2.6M | cae6522b6a35 | linux/arm64 | | |
| | 2.2M | 0c6b515386fd | linux/arm | | |
| | 2.4M | 97e9e9a15ef9 | linux/s390x | | |
| | 2.4M | 5292cebaf695 | linux/arm | | |
| | 2.6M | ab3fe83c0696 | linux/amd64 | | |
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
| 3.8 | 2M | e802987f152d | linux/arm64 | NULL | 2020-01-23T17:41:40Z |
| 3.8.5 | 2.1M | 402d21757a03 | linux/ppc64le | | |
| | 2.2M | cf35b4fa14e2 | linux/386 | | |
| | 2M | dabea2944dcc | linux/arm | | |
| | 2.1M | 954b378c375d | linux/amd64 | | |
| | 2.2M | 514ec80ffbe1 | linux/s390x | | |
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
| 3.10 | 2.7M | 33158d51a7a5 | linux/ppc64le | NULL | 2020-01-23T17:41:10Z |
| 3.10.4 | 2.7M | de78803598bc | linux/amd64 | | |
| | 2.5M | 9afbfccb8066 | linux/arm | | |
| | 2.7M | 747f335d2f68 | linux/386 | | |
| | 2.5M | 216161924b52 | linux/s390x | | |
| | 2.3M | 2632d6288d34 | linux/arm | | |
| | 2.6M | 4491fd429b8a | linux/arm64 | | |
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
| edge | 2.6M | fb7bea212348 | linux/arm64 | NULL | 2020-01-23T00:41:09Z |
| 20200122 | 2.5M | e3e522f13253 | linux/arm | | |
| | 2.7M | 7b5953e862c9 | linux/ppc64le | | |
| | 2.3M | e137ff293fcc | linux/arm | | |
| | 2.7M | 5f60bf03cace | linux/386 | | |
| | 2.5M | cb3bf0adee89 | linux/s390x | | |
| | 2.7M | 9898e9a51db3 | linux/amd64 | | |
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
| latest | 2.6M | 4d5c59516695 | linux/arm64 | NULL | 2020-01-18T02:41:10Z |
| 3.11.3 | 2.3M | 2c26a655f6e3 | linux/arm | | |
| | 2.5M | 401f030aa35e | linux/arm | | |
| | 2.7M | ddba4d27a7ff | linux/amd64 | | |
| | 2.5M | ef20eb43010a | linux/s390x | | |
| | 2.7M | c40c013324aa | linux/386 | | |
| | 2.7M | ff8a6adf5859 | linux/ppc64le | | |
+--------------------------------+--------------------------------+--------------------------------+--------------------------------+------------+----------------------+
# You can set limit, filter and format
$ dockertags -limit 1 -contain latest -format json alpine
[
{
"tags": [
"latest",
"3.11.3",
"3.11",
"3"
],
"data": [
{
"Os": "linux",
"Arch": "ppc64le",
"Digest": "sha256:ff8a6adf5859433869343296f1b06e0a7bdf4fc836b08d5854221e351baf6929",
"byte": 2822125
},
{
"Os": "linux",
"Arch": "arm64",
"Digest": "sha256:4d5c5951669588e23881c158629ae6bac4ab44866d5b4d150c3f15d91f26682b",
"byte": 2723075
},
{
"Os": "linux",
"Arch": "s390x",
"Digest": "sha256:ef20eb43010abda2d7944e0cd11ef00a961ff7a7f953671226fbf8747895417d",
"byte": 2582031
},
{
"Os": "linux",
"Arch": "arm",
"Digest": "sha256:401f030aa35e86bafd31c6cc292b01659cbde72d77e8c24737bd63283837f02c",
"byte": 2617562
},
{
"Os": "linux",
"Arch": "386",
"Digest": "sha256:c40c013324aa73f430d33724d8030c34b1881e96b23f44ec616f1caf8dbf445f",
"byte": 2806560
},
{
"Os": "linux",
"Arch": "amd64",
"Digest": "sha256:ddba4d27a7ffc3f86dd6c2f92041af252a1f23a8e742c90e6e1297bfa1bc0c45",
"byte": 2802957
},
{
"Os": "linux",
"Arch": "arm",
"Digest": "sha256:2c26a655f6e38294e859edac46230210bbed3591d6ff57060b8671cda09756d4",
"byte": 2419554
}
],
"created_at": "0001-01-01T00:00:00Z",
"uploaded_at": "2020-01-18T02:41:10.850638Z"
}
]
Usage
NAME:
dockertags - fetch docker image tags
dockertags [options] image_name
OPTIONS:
--limit value, -l value set max tags count. if exist no tag image will be short numbers. limit=0 means fetch all tags (default: 10)
--contain value, -c value contains target string. multiple string allows.
--format value, -f value target format table or json, default table (default: "table")
--output value, -o value output file name, default output to stdout
--authurl value, --auth value GetURL when fetch authentication
--timeout value, -t value e.g)5s, 1m (default: 10s)
--username value, -u value Username
--password value, -p value Using -password via CLI is insecure. Be careful.
--debug, -d Show debug logs
--help, -h show help
--version, -v print the version
GitHub Actions
You can scan target image everyday recently updated.
This actions also notify results if trivy detects vulnerabilities.
name: Scan the target image with trivy
on:
schedule:
- cron: '0 0 * * *'
jobs:
scan:
name: Scan via trivy
runs-on: ubuntu-latest
env:
IMAGE: goodwithtech/dockle # target image name
FILTER: v0.2 # pattern : /*v0.2*/
steps:
- name: detect a target image tag
id: target
run: echo ::set-output name=ver::$(
docker run --rm goodwithtech/dockertags -contain $FILTER -limit 1 -format json $IMAGE
| jq -r .[0].tags[0]
)
- name: detect a trivy image tag
id: trivy
run: echo ::set-output name=ver::$(
docker run --rm goodwithtech/dockertags -limit 1 -format json aquasec/trivy
| jq -r .[0].tags[0]
)
- name: check tags
run: |
echo trivy ${{ steps.trivy.outputs.ver }}
echo $IMAGE ${{ steps.target.outputs.ver }}
- name: scan the image with trivy
run: docker run aquasec/trivy:${{ steps.trivy.outputs.ver }}
--cache-dir /var/lib/trivy --exit-code 1 --no-progress
$IMAGE:${{ steps.target.outputs.ver }}
- name: notify to slack
if: failure()
uses: rtCamp/action-slack-notify@master
env:
SLACK_CHANNEL: channel # target channel
SLACK_MESSAGE: 'failed : trivy detects vulnerabilities'
SLACK_TITLE: trivy-scan-notifier
SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
Authentication
Docker Hub
You can use --username and --password of Docker Hub.
dockertags -u goodwithtech -p xxxx goodwithtech/privateimage
Amazon ECR (Elastic Container Registry)
Use AWS CLI's ENVIRONMENT variables.
AWS_PROFILE={PROFILE_NAME}
AWS_DEFAULT_REGION={REGION}
GCR (Google Container Registry)
If you'd like to use the target project's repository, you can settle via GOOGLE_APPLICATION_CREDENTIAL.
GOOGLE_APPLICATION_CREDENTIALS=/path/to/credential.json
Open Source Agenda is not affiliated with "Dockertags" Project. README Source: goodwithtech/dockertags
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