[CI] Add golang tests and linter launch

.github/workflows/go_lint.yaml

@@ -0,0 +1,44 @@
+name: Go linter for images
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Go linter for images
+    runs-on: [self-hosted, regular]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Setup Go environment
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22'
+
+      - name: Install golangci-lint
+        run: go install github.com/golangci/golangci-lint/cmd/[email protected]
+
+      - name: Run Go lint
+        run: |
+          basedir=$(pwd)
+          failed='false'
+          for dir in $(find images -type d); do
+            if ls $dir/go.mod &> /dev/null; then
+              echo "Running linter in $dir"
+              cd $dir
+              golangci-lint run
+              if [ $? -ne 0 ]; then
+                echo "Linter failed in $dir"
+                failed='true'
+              fi
+            cd $basedir
+            fi
+          done
+          if [ $failed == 'true' ]; then
+            exit 1
+          fi

.github/workflows/go_tests.yaml

@@ -0,0 +1,41 @@
+name: Go tests for images
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Go tests for images
+    runs-on: [self-hosted, regular]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Setup Go environment
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22'
+
+      - name: Run Go tests
+        run: |
+          basedir=$(pwd)
+          failed='false'
+          for dir in $(find images -type d); do
+            if ls $dir/*_test.go &> /dev/null; then
+              echo "Running tests in $dir"
+              cd $dir
+              go test -v
+              if [ $? -ne 0 ]; then
+                echo "Tests failed in $dir"
+                failed='true'
+              fi
+            cd $basedir
+            fi
+          done
+          if [ $failed == 'true' ]; then
+            exit 1
+          fi

.golangci.yaml

@@ -0,0 +1,39 @@
+run:
+  timeout: 10m
+
+issues:
+  exclude:
+    - ST1005.*
+    - "should not use dot imports"
+    - "don't use an underscore in package name"
+    - "exported: .*"
+
+linters-settings:
+  gci:
+    sections:
+      - standard
+      - default
+  errcheck:
+    ignore: fmt:.*,[rR]ead|[wW]rite|[cC]lose,io:Copy
+
+linters:
+  disable-all: true
+  enable:
+  - dogsled
+  - errcheck
+  - gci
+  - gocritic
+  - gofmt
+  - goimports
+  - gosimple
+  - govet
+  - ineffassign
+  - misspell
+  - revive
+  - staticcheck
+#  - structcheck
+  - typecheck
+  - unconvert
+  - unparam
+  - whitespace
+  - copyloopvar