.github/workflows: add integration test workflow

.github/actions/setup-postgres/.env

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+POSTGRES_USER=postgres
+POSTGRES_OPTIONS="-c max_connections=1000 -c shared_buffers=2GB -c log_lock_waits=true"
+POSTGRES_PASSWORD=postgres
+POSTGRES_DB=chainlink_test
+POSTGRES_HOST_AUTH_METHOD=trust

.github/actions/setup-postgres/action.yml

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+name: Setup Postgresql
+description: Setup postgres docker container via docker-compose, allowing usage of a custom command, see https://github.com/orgs/community/discussions/26688
+inputs:
+  base-path:
+    description: Path to the base of the repo
+    required: false
+    default: .
+runs:
+  using: composite
+  steps:
+    - name: Start postgres service
+      run: docker compose up -d
+      shell: bash
+      working-directory: ${{ inputs.base-path }}/.github/actions/setup-postgres
+    - name: Wait for postgres service to be healthy
+      run: ./wait-for-healthy-postgres.sh
+      shell: bash
+      working-directory: ${{ inputs.base-path }}/.github/actions/setup-postgres

.github/actions/setup-postgres/bin/pg_dump

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+#!/usr/bin/env bash
+#
+# This script acts as a docker replacement around pg_dump so that developers can
+# run DB involved tests locally without having postgres installed.
+#
+# Installation:
+# - Make sure that your PATH doesn't already contain a postgres installation
+# - Add this script to your PATH
+#
+# Usage:
+# You should be able to setup your test db via:
+# - go build -o chainlink.test . # Build the chainlink binary to run test db prep commands from
+# - export CL_DATABASE_URL="postgresql://postgres:postgres@localhost:5432/chainlink_test?sslmode=disable"
+# - pushd .github/actions/setup-postgres/ # Navigate to the setup-postgres action so we can spin up a docker postgres
+# instance
+# - docker compose up # Spin up postgres
+# - ./chainlink.test local db preparetest # Run the db migration, which will shell out to our pg_dump wrapper too.
+# - popd 
+# - go test -timeout 30s ./core/services/workflows/... -v # Run tests that use the database
+
+cd "$(dirname "$0")" || exit
+
+docker compose exec -T postgres pg_dump "$@" 

.github/actions/setup-postgres/docker-compose.yml

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+name: gha_postgres
+services:
+  postgres:
+    ports:
+      - "5432:5432"
+    container_name: cl_pg
+    image: postgres:14-alpine
+    command: postgres ${POSTGRES_OPTIONS}
+    env_file:
+      - .env
+    healthcheck:
+      test: "pg_isready -d ${POSTGRES_DB} -U ${POSTGRES_USER}"
+      interval: 2s
+      timeout: 5s
+      retries: 5

.github/actions/setup-postgres/wait-for-healthy-postgres.sh

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+#!/bin/bash
+RETRIES=10
+
+until [ $RETRIES -eq 0 ]; do
+  DOCKER_OUTPUT=$(docker compose ps postgres --status running --format json)
+  JSON_TYPE=$(echo "$DOCKER_OUTPUT" | jq -r 'type')
+
+  if [ "$JSON_TYPE" == "array" ]; then
+    HEALTH_STATUS=$(echo "$DOCKER_OUTPUT" | jq -r '.[0].Health')
+  elif [ "$JSON_TYPE" == "object" ]; then
+    HEALTH_STATUS=$(echo "$DOCKER_OUTPUT" | jq -r '.Health')
+  else
+    HEALTH_STATUS="Unknown JSON type: $JSON_TYPE"
+  fi
+
+  echo "postgres health status: $HEALTH_STATUS"
+  if [ "$HEALTH_STATUS" == "healthy" ]; then
+    exit 0
+  fi
+
+  echo "Waiting for postgres server, $((RETRIES--)) remaining attempts..."
+  sleep 2
+done
+
+exit 1

.github/workflows/ccip-integration-test.yml

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+name: "Run CCIP OCR3 Integration Test"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - 'ccip-develop'
+
+jobs:
+  integration-test-ccip-ocr3:
+    env:
+      # We explicitly have this env var not be "CL_DATABASE_URL" to avoid having it be used by core related tests
+      # when they should not be using it, while still allowing us to DRY up the setup
+      DB_URL: postgresql://postgres:postgres@localhost:5432/chainlink_test?sslmode=disable
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ['1.22.5']
+    steps:
+      - name: Checkout the repo
+        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
+      - name: Setup Go ${{ matrix.go-version }}
+        uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Display Go version
+        run: go version
+      - name: Clone CCIP repo
+        run: |
+          git clone https://github.com/smartcontractkit/ccip.git
+          cd ccip
+          git fetch
+          git checkout ccip-develop
+      - name: Update chainlink-ccip dependency in ccip
+        run: |
+          cd ccip
+          go get github.com/smartcontractkit/chainlink-ccip@${{ github.event.pull_request.head.sha }}
+          make gomodtidy
+      - name: Setup Postgres
+        uses: ./.github/actions/setup-postgres
+      - name: Download Go vendor packages
+        run: |
+          cd ccip
+          go mod download
+      - name: Build binary
+        run: |
+          cd ccip
+          go build -o ccip.test .
+      - name: Setup DB
+        run: |
+          cd ccip
+          ./ccip.test local db preparetest
+        env:
+          CL_DATABASE_URL: ${{ env.DB_URL }}
+      - name: Run ccip ocr3 integration test
+        run: |
+          cd ccip
+          go test -v -timeout 3m -run "^TestIntegration_OCR3Nodes$" ./core/capabilities/ccip/ccip_integration_tests
+          EXITCODE=${PIPESTATUS[0]}
+          if [ $EXITCODE -ne 0 ]; then
+            echo "Integration test failed"
+          else
+            echo "Integration test passed!"
+          fi
+          exit $EXITCODE
+        env:
+          CL_DATABASE_URL: ${{ env.DB_URL }}