Add script to generate integration test gitjobs

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

cmd/gh-action-integration-generator/main.go

@@ -0,0 +1,132 @@
+package main
+
+//go:generate go run ./main.go
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"os"
+	"text/template"
+)
+
+var (
+	jobFileNameTemplate = `test-integration-v2-%s.yaml`
+	jobTemplate         = template.Must(template.New("jobTemplate").Parse(`
+# DO NOT EDIT, generated with cmd/gh-action-integration-generator/main.go
+# To regenerate, run "go generate" in cmd/gh-action-integration-generator/
+
+name: Integration Test v2 - {{.Name}}
+
+on: [pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 2
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v34
+        with:
+          files: |
+            *.nix
+            go.*
+            **/*.go
+            integration_test/
+            config-example.yaml
+
+      - uses: cachix/install-nix-action@v16
+        if: steps.changed-files.outputs.any_changed == 'true'
+
+      - name: Run general integration tests
+        if: steps.changed-files.outputs.any_changed == 'true'
+<<<<<<< HEAD:integration/github_ci_jobs.go
+        run: >
+            nix develop --command --
+            docker run
+                --tty --rm
+                --volume ~/.cache/hs-integration-go:/go
+                --name headscale-test-suite
+                --volume $$PWD:$$PWD -w $$PWD/integration
+                --volume /var/run/docker.sock:/var/run/docker.sock
+                golang:1
+                	go test ./...
+						-tags ts2019
+						-failfast
+						-timeout 120m
+						-parallel 1
+						-run {{.Name}}
+=======
+        run: |
+            nix develop --command -- docker run \
+              --tty --rm \
+              --volume ~/.cache/hs-integration-go:/go \
+              --name headscale-test-suite \
+              --volume $PWD:$PWD -w $PWD/integration \
+              --volume /var/run/docker.sock:/var/run/docker.sock \
+              golang:1 \
+                go test ./... \
+                  -tags ts2019 \
+                  -failfast \
+                  -timeout 120m \
+                  -parallel 1 \
+                  -run {{.Name}}
+>>>>>>> dd5c2cd (move):cmd/gh-action-integration-generator/main.go
+`))
+)
+
+const workflowFilePerm = 0o600
+
+func main() {
+	type testConfig struct {
+		Name string
+	}
+
+	// TODO(kradalby): automatic fetch tests at runtime
+	tests := []string{
+		"TestAuthKeyLogoutAndRelogin",
+		"TestAuthWebFlowAuthenticationPingAll",
+		"TestAuthWebFlowLogoutAndRelogin",
+		"TestCreateTailscale",
+		"TestEnablingRoutes",
+		"TestHeadscale",
+		"TestNamespaceCommand",
+		"TestOIDCAuthenticationPingAll",
+		"TestOIDCExpireNodes",
+		"TestPingAllByHostname",
+		"TestPingAllByIP",
+		"TestPreAuthKeyCommand",
+		"TestPreAuthKeyCommandReusableEphemeral",
+		"TestPreAuthKeyCommandWithoutExpiry",
+		"TestResolveMagicDNS",
+		"TestSSHIsBlockedInACL",
+		"TestSSHMultipleNamespacesAllToAll",
+		"TestSSHNoSSHConfigured",
+		"TestSSHOneNamespaceAllToAll",
+		"TestSSNamespaceOnlyIsolation",
+		"TestTaildrop",
+		"TestTailscaleNodesJoiningHeadcale",
+	}
+
+	for _, test := range tests {
+		var content bytes.Buffer
+
+		if err := jobTemplate.Execute(&content, testConfig{
+			Name: test,
+		}); err != nil {
+			log.Fatalf("failed to render template: %s", err)
+		}
+
+		path := "../../.github/workflows/" + fmt.Sprintf(jobFileNameTemplate, test)
+
+		err := os.WriteFile(path, content.Bytes(), workflowFilePerm)
+		if err != nil {
+			log.Fatalf("failed to write github job: %s", err)
+		}
+	}
+}