Add Image-Triggers support

Author: macropin

Dockerfile

@@ -125,6 +125,26 @@ RUN set -x \
   && rm -rf /tmp/k8s-sidecar \
   ;
 
+# Install Image Triggers
+ENV IMAGE_TRIGGERS_VERSION=0.0.4 \
+    IMAGE_TRIGGERS_CHECKSUM_X86_64=d48257a84ca50a9d955a5e41ba954e68724ad0a6baf5ecf4fab8120262925efc \
+    IMAGE_TRIGGERS_CHECKSUM_AARCH64=b242e58d4502e11542d64e5d4905c7f480a0444a3081b03ba9f3d6d7256ef298
+RUN set -x \
+  && if [ "$(uname -m)" = "x86_64" ] ; then \
+        IMAGE_TRIGGERS_CHECKSUM="${IMAGE_TRIGGERS_CHECKSUM_X86_64}"; \
+        ARCH="linux_amd64"; \
+      elif [ "$(uname -m)" = "aarch64" ]; then \
+        IMAGE_TRIGGERS_CHECKSUM="${IMAGE_TRIGGERS_CHECKSUM_AARCH64}"; \
+        ARCH="linux_arm64"; \
+      fi \
+  && wget --no-verbose https://github.com/panubo/image-triggers/releases/download/v${IMAGE_TRIGGERS_VERSION}/image-triggers_${IMAGE_TRIGGERS_VERSION}_${ARCH}.tar.gz -O /tmp/image-triggers.tar.gz \
+  && echo "${IMAGE_TRIGGERS_CHECKSUM}  image-triggers.tar.gz" > /tmp/SHA256SUM \
+  && ( cd /tmp; sha256sum -c SHA256SUM || ( echo "Expected $(sha256sum image-triggers.tar.gz)"; exit 1; )) \
+  && tar -C /usr/local/bin -zxf /tmp/image-triggers.tar.gz \
+  && chmod +x /usr/local/bin/image-triggers \
+  && rm -f /tmp/image-triggers.tar.gz /tmp/SHA256SUM \
+  ;
+
 # Download plugins
 COPY install-plugins.sh /
 RUN /install-plugins.sh

ansible-bootstrap/main.yml

@@ -5,6 +5,7 @@
 
   vars:
     - rundeck_tokens: []
+    - rundeck_triggers_registry_rules: []
 
   tasks:
     - include_tasks: scripts.yml

ansible-bootstrap/scripts.yml

@@ -27,3 +27,19 @@
     mode: "0700"
     owner: root
     group: root
+
+- name: Write trigger_rundeck_job.sh
+  template:
+    dest: "/scripts/trigger_rundeck_job.sh"
+    src: "templates/trigger_rundeck_job.sh.j2"
+    mode: "0700"
+    owner: root
+    group: root
+
+- name: Write trigger_registry_rules.sh
+  template:
+    dest: "/scripts/trigger_registry_rules.sh"
+    src: "templates/trigger_registry_rules.sh.j2"
+    mode: "0700"
+    owner: root
+    group: root

ansible-bootstrap/templates/trigger_registry_rules.sh.j2

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+#
+# LICENSE: MIT License, Copyright (C) 2020-2025 Volt Grid Pty Ltd
+#
+# This triggers Rundeck jobs in response to registry events. Acts as a
+# filter on which images/tags trigger a corresponding action.
+# This is used by image-triggers.
+
+set -euo pipefail
+IFS=$'\n\t'
+
+image_name="${1}"
+image_tag="${2}"
+
+rundeck() {
+  echo ">> Running: trigger_rundeck_job.sh ${@}"
+  /scripts/trigger_rundeck_job.sh "${@}"
+}
+
+{% for rule in rundeck_triggers_registry_rules %}
+{% if loop.first %}if{% else %}elif{% endif %} [[ "${image_name}" =~ {{ rule.rule.name }} ]] && [[ "${image_tag}" =~ {{ rule.rule.tag }} ]]; then
+{% for action in rule.actions %}
+  echo ">> Matched ${image_name}:${image_tag}"
+  {{ action }}
+{% endfor %}
+{% endfor %}
+else
+  echo ">> No matching rules for ${image_name}:${image_tag}"
+fi

ansible-bootstrap/templates/trigger_rundeck_job.sh.j2

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+#
+# LICENSE: MIT License, Copyright (C) 2020-2025 Volt Grid Pty Ltd
+#
+# Triggers a Rundeck Job using the API
+# Used by image triggers to trigger a job in response to a registry event
+
+set -euo pipefail
+IFS=$'\n\t'
+
+echo ">> Running $(basename "$0")"
+
+RD_TOKEN="{{ rundeck_token_configuresh }}"
+CONFIG_DIR="${CONFIG_DIR:-/config}"
+
+project="${1}"
+job="${2}"
+shift 2
+
+# wait_http URL [TIMEOUT] [HTTP TIMEOUT]
+wait_http() {
+  # Wait for http service to be available
+  command -v curl >/dev/null 2>&1 || { error "This function requires curl to be installed."; return 1; }
+  local url="${1:-'http://localhost'}"
+  local timeout="${2:-30}"
+  local http_timeout="${3:-2}"
+  echo -n "Connecting to HTTP at ${url}"
+  for (( i=0;; i++ )); do
+    if [[ "${i}" -eq "${timeout}" ]]; then
+      echo " timeout!"
+      return 99
+    fi
+    sleep 1
+    (curl --max-time "${http_timeout}" "${url}") &>/dev/null && break
+    echo -n "."
+  done
+  echo " connected."
+  exec 3>&-
+  exec 3<&-
+}
+
+wait_http "${RD_URL}" 300
+
+data=()
+
+for item in "${@}"; do
+  data+=("-d" "option.${item}")
+done
+
+get_job_id() {
+  curl "${RD_URL}/api/14/project/${project}/jobs?jobExactFilter=${job}" -H "Accept: application/json" -H "X-Rundeck-Auth-Token: ${RD_TOKEN}" -sSf | jq -r '.[0].id'
+}
+
+curl -XPOST "${RD_URL}/api/18/job/$(get_job_id)/run" -H "Accept: application/json" -H "X-Rundeck-Auth-Token: ${RD_TOKEN}" -sSf "${data[@]}" | jq .
+
+echo ">> Finished $(basename "$0")"