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configuration.md

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Configuration

Here is a YAML structure example:

db:
  path: diun.db

watch:
  workers: 10
  schedule: "0 0 * * * *"

notif:
  mail:
    enable: false
    host: localhost
    port: 25
    ssl: false
    insecure_skip_verify: false
    username:
    password:
    from:
    to:
  webhook:
    enable: false
    endpoint: http://webhook.foo.com/sd54qad89azd5a
    method: GET
    headers:
      Content-Type: application/json
      Authorization: Token123456
    timeout: 10

regopts:
  someregistryoptions:
    username: foo
    password: bar
    timeout: 20
  onemore:
    username: foo2
    password: bar2
    insecure_tls: true

image:
  # Watch latest tag of crazymax/nextcloud image on docker.io (DockerHub) with registry ID 'someregistryoptions'.
  - name: docker.io/crazymax/nextcloud:latest
    regopts_id: someregistryoptions
  # Watch 4.0.0 tag of jfrog/artifactory-oss image on frog-docker-reg2.bintray.io (Bintray) with registry ID 'onemore'.
  - name: jfrog-docker-reg2.bintray.io/jfrog/artifactory-oss:4.0.0
    regopts_id: onemore
  # Watch coreos/hyperkube image on quay.io (Quay) and assume latest tag.
  - name: quay.io/coreos/hyperkube
  # Watch crazymax/swarm-cronjob image and assume docker.io registry and latest tag.
  # Only include tags matching regexp ^1\.2\..*
  - name: crazymax/swarm-cronjob
    watch_repo: true
    include_tags:
      - ^1\.2\..*
  # Watch portainer/portainer image on docker.io (DockerHub) and assume latest tag
  # Only watch latest 10 tags and include tags matching regexp ^(0|[1-9]\d*)\..*
  - name: docker.io/portainer/portainer
    watch_repo: true
    max_tags: 10
    include_tags:
      - ^(0|[1-9]\d*)\..*
  # Watch alpine image (library) and assume docker.io registry and latest tag.
  # Only check linux/arm64v8 image
  - name: alpine
    watch_repo: true
    os: linux
    arch: arm64v8

db

  • db
    • path: Path to Bolt database file where images manifests are stored (default: diun.db). Environment var DIUN_DB override this value.

watch

  • watch
    • workers: Maximum number of workers that will execute tasks concurrently. Optional. (default: 10).
    • schedule: CRON expression to schedule Diun watcher. Optional. (default: 0 0 * * * *).

notif

  • notif
    • mail
      • enable: Enable email reports (default: false).
      • host: SMTP server host (default: localhost). required
      • port: SMTP server port (default: 25). required
      • ssl: SSL defines whether an SSL connection is used. Should be false in most cases since the auth mechanism should use STARTTLS (default: false).
      • insecure_skip_verify: Controls whether a client verifies the server's certificate chain and host name (default: false).
      • username: SMTP username.
      • password: SMTP password.
      • from: Sender email address. required
      • to: Recipient email address. required
    • webhook
      • enable: Enable webhook notification (default: false).
      • endpoint: URL of the HTTP request. required
      • method: HTTP method (default: GET). required
      • headers: Map of additional headers to be sent.
      • timeout: Timeout specifies a time limit for the request to be made. (default: 10).

regopts

  • regopts: Map of registry options to use with images. Key is the ID and value is a struct with the following fields:
    • username: Registry username.
    • password: Registry password.
    • timeout: Timeout is the maximum amount of time for the TCP connection to establish. 0 means no timeout (default: 10).
    • insecure_tls: Allow contacting docker registry over HTTP, or HTTPS with failed TLS verification (default: false).

image

  • image: Slice of image to watch with the following fields:
    • name: Docker image name to watch using registry/path:tag format. If registry is omitted, docker.io will be used and if tag is omitted, latest will be used. required
    • os: OS to use. Optional. (default: linux).
    • arch: Architecture to use. Optional. (default: amd64).
    • regopts_id: Registry options ID from regopts to use.
    • watch_repo: Watch all tags of this image repository (default: false).
    • max_tags: Maximum number of tags to watch if watch_repo enabled. 0 means all of them (default: 0).
    • include_tags: List of regular expressions to include tags. Can be useful if you enable watch_repo.
    • exclude_tags: List of regular expressions to exclude tags. Can be useful if you enable watch_repo.