integration: add single-cluster integration tests (#2516)

* integration: add single-cluster integration tests

* remove kind load

integration/tpl/backends/verify.libsonnet

@@ -0,0 +1,55 @@
+local utils = import '../utils.libsonnet';
+
+function(mode) {
+  local name = 'verify',
+  local image = 'pomerium/verify:${VERIFY_TAG:-latest}',
+
+  compose: {
+    services:
+      utils.ComposeService(name, {
+        image: image,
+        depends_on: {
+          [name + '-init']: {
+            condition: 'service_completed_successfully',
+          },
+        },
+        environment: {
+          SSL_CERT_FILE: '/verify_config/ca.pem',
+        },
+        volumes: [
+          'verify_config:/verify_config',
+        ],
+      }) +
+      utils.ComposeService(name + '-init', {
+        image: 'busybox:latest',
+        command: [
+          'sh',
+          '-c',
+          "echo '" + (importstr '../files/ca.pem') + "' > /verify_config/ca.pem",
+        ],
+        volumes: [
+          'verify_config:/verify_config',
+        ],
+      }) +
+      utils.ComposeService(name + '-ready', {
+        image: 'jwilder/dockerize:0.6.1',
+        command: [
+          '-wait',
+          'http://' + name + ':80/',
+          '-timeout',
+          '10m',
+        ],
+      }),
+    volumes: {
+      verify_config: {},
+    },
+  },
+  kubernetes: [
+    utils.KubernetesService(name, [
+      { name: 'http', port: 80, targetPort: 'http' },
+    ]),
+    utils.KubernetesDeployment(name, image, null, [
+      { name: 'http', containerPort: 80 },
+    ]),
+  ],
+}