attempt to simplify

nordvpn-autoconfigure.jenkins

@@ -1,13 +1,16 @@
-def label = "jenkins-${UUID.randomUUID().toString()}"
+#!groovy
 
-def registry = "registry.c.test-chamber-13.lan"
+// repository configuration
+def repository = "registry.c.test-chamber-13.lan"
 
-def alpineImage = "${registry}/library/alpine"
-def alpineTag = "latest"
-
-def kubectlCreds = "k8s-dl-automation-access"
+// jenkins secrets
 def nordCreds = "nordvpn-login-creds"
 
+// kubernetes configuration
+def kubeNamespace = "dl-automation"
+def kubeSecret = "openvpn"
+
+// list of urls that return different nordVPN servers
 def nordURLs = [
     // canada
     "https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_recommendations&filters=\\{%22country_id%22:38,%22servers_groups%22:\\[15\\],%22servers_technologies%22:\\[5\\]\\}",
@@ -26,95 +29,100 @@ def nordURLs = [
     // united kingdom
     "https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_recommendations&filters=\\{%22country_id%22:38,%22servers_groups%22:\\[15\\],%22servers_technologies%22:\\[5\\]\\}",
 ]
+// randomly select one from the list
 def nordURL = nordURLs[Math.abs(new Random().nextInt() % [8])]
 
-def kubeNamespace = "dl-automation"
-def kubeSecret = "openvpn"
+// script used to retrieve a nordVPN OpenVPN configuration from NordVPN
+def openVPNConfigScript = """# Get OpenVPN Config
+curl \
+    --silent \
+    --location \
+    --fail \
+    "https://downloads.nordcdn.com/configs/files/ovpn_tcp/servers/\$(
+        curl \
+            --silent \
+            --location \
+            --fail \
+            '""" + nordURL + """' \
+        | jq \
+            --raw-output \
+            '[.[] | select(.technologies[] | .identifier == "openvpn_tcp")][0] | .hostname' \
+        ).tcp.ovpn" \
+    | sed \
+        --regexp-extended \
+        --expression='s/auth-user-pass/auth-user-pass \\/etc\\/openvpn\\/client\\/openvpn-credentials.txt/' \
+    | base64 -w 0
+"""
 
+def label = "kubernetes-${UUID.randomUUID().toString()}"
+def templateName = "pipeline-worker"
 podTemplate(
     label: label,
-    name: "pipeline-worker",
-    yaml: """---
-apiVersion: v1
-kind: Pod
-metadata:
-  name: pipeline-worker
-spec:
-  containers:
-  - name: alpine
-    imagePullPolicy: Always
-    image: ${alpineImage}:${alpineTag}
-    tty: true
-    command:
-    - /bin/sh
-""",
+    name: templateName,
+    yaml: functions.podYaml(
+        repo: repository,
+        templateName: templateName,
+        alpine: true 
+    )
 ) {
     node (label) {
         def workspace = pwd()
+        def openVPNConfig
 
-        stage ("Update Secret") {
+        stage ("Prepare Container") {
             container ("alpine") {
                 sh """
                     apk add --no-cache curl jq sed
                     KUBE_VERSION="\$(curl --location --silent https://dl.k8s.io/release/stable.txt)"
                     curl \
-                      --location \
-                      --silent \
-                      --output /usr/local/bin/kubectl \
-                      "https://dl.k8s.io/release/\${KUBE_VERSION}/bin/linux/amd64/kubectl"
+                        --location \
+                        --silent \
+                        --output /usr/local/bin/kubectl \
+                        "https://dl.k8s.io/release/\${KUBE_VERSION}/bin/linux/amd64/kubectl"
                     chmod +x /usr/local/bin/kubectl
                 """
-
-                withCredentials([string(
-                    credentialsId: nordCreds,
-                    variable: "NORD_CREDS",
-                )]) {
-
-                    withKubeConfig([
-                        credentialsId: kubectlCreds,
-                        serverUrl: "https://kubernetes.test-chamber-13.lan:6443",
-                        namespace: kubeNamespace
-                    ]) {
-                        sh """
-                            # Get OpenVPN Config
-                            OPENVPN_CONFIG="\$(
-                                curl \
-                                    --silent \
-                                    --location \
-                                    --fail \
-                                    "https://downloads.nordcdn.com/configs/files/ovpn_tcp/servers/\$(
-                                        curl \
-                                            --silent \
-                                            --location \
-                                            --fail \
-                                            '""" + nordURL + """' \
-                                        | jq \
-                                            --raw-output \
-                                            '[.[] | select(.technologies[] | .identifier == "openvpn_tcp")][0] | .hostname' \
-                                        ).tcp.ovpn" \
-                                    | sed \
-                                        --regexp-extended \
-                                        --expression='s/auth-user-pass/auth-user-pass \\/etc\\/openvpn\\/client\\/openvpn-credentials.txt/' \
-                                    | base64 -w 0
-                                )"
-                            printf '%s\n' \
-                                "apiVersion: v1" \
-                                "kind: Secret" \
-                                "metadata:" \
-                                "  name: """ + kubeSecret + """" \
-                                "  namespace: """ + kubeNamespace + """" \
-                                "data:" \
-                                "  openvpn-credentials.txt: \${NORD_CREDS}" \
-                                "  us5766.nordvpn.com.tcp.ovpn: \${OPENVPN_CONFIG}" > /tmp/openvpn-secret.kubectl
-
-                            kubectl apply --namespace """ + kubeNamespace + """ -f /tmp/openvpn-secret.kubectl
-                            for i in \$(kubectl get pods --namespace """ + kubeNamespace + """ --selector app="deluge" -o name); do
-                                kubectl delete --namespace """ + kubeNamespace + """ \${i}
-                            done
-                        """
-                    }
-                }
             }
         }
+
+        stage ("Get Remote OpenVPN Config") {
+            container ("alpine") {
+                openVPNConfig = sh(
+                    returnStdout: true,
+                    script: openVPNConfigScript
+                )
+            }
+        }
+
+        stage ("Compile Secret") {
+            def k8sSecret
+            withCredentials([string(
+                credentialsId: nordCreds,
+                variable: "NORD_CREDS",
+            )]) {
+                k8sSecret = """apiVersion: v1
+kind: Secret
+metadata:
+  name: """ + kubeSecret + """
+  namespace: """ + kubeNamespace + """
+data:
+  openvpn-credentials.txt: """ + NORD_CREDS + """
+  nordvpn.com.tcp.ovpn: """ + openVPNConfig + """
+"""
+            }
+        }
+        
+        functions.createSecret(
+            kubeAuth: "k8s-dl-automation-access",
+            kubeURL: "https://kubernetes.test-chamber-13.lan:6443",
+            namespace: "dl-automation",
+            secret: k8sSecret
+        )
+
+        functions.deletePod(
+            kubeAuth: "k8s-dl-automation-access",
+            kubeURL: "https://kubernetes.test-chamber-13.lan:6443",
+            namespace: "dl-automation",
+            selector: "app=deluge"
+        )
     }
 }