update

test/e2e/README.md

@@ -8,10 +8,19 @@ You could refer to the [Testing Cluster API](https://cluster-api.sigs.k8s.io/dev
 make docker-build-e2e   # should be run everytime you change the controller code
 make test-e2e   # run all e2e tests
 ```
+### Run a specific e2e test
 To run a specific e2e test, you can use the `GINKGO_FOCUS` environment variable to specify the test you want to run. For example:
 ```shell
-make test-e2e GINKGO_FOCUS="Creating a cluster"
+make GINKGO_FOCUS="Creating a cluster" test-e2e  # only run the "Creating a cluster" e2e test
+```
+### Run the e2e test with tilt
+It is quite useful to run the e2e test with [tilt](https://cluster-api.sigs.k8s.io/developer/tilt), so that you will not need to rebuild docker image with `make docker-build-e2e` everytime. Also you will not need to wait a new cluster creation and setup. If you set up your tilt cluster with name and current context points to this cluster, you could run:
+```shell
+# running e2e for the cluster pointed by the current context
+make USE_EXISTING_CLUSTER=true test-e2e
 ```
-Also it is quite useful to run the e2e test with [tilt](https://cluster-api.sigs.k8s.io/developer/tilt), so that you will not need to rebuild docker image with makefile everytime.
 ## Develop an e2e test
-You could refer to [Developing E2E tests](https://cluster-api.sigs.k8s.io/developer/e2e) for a complete guide for developing e2e tests.
+You could refer to [Developing E2E tests](https://cluster-api.sigs.k8s.io/developer/e2e) for a complete guide for developing e2e tests.
+
+## Troubleshooting
+* [Cluster API with Docker - "too many open files".](https://cluster-api.sigs.k8s.io/user/troubleshooting.html?highlight=too%20many#cluster-api-with-docker----too-many-open-files)

test/e2e/config/k3s-docker.yaml

@@ -28,14 +28,23 @@ providers:
   - name: docker
     type: InfrastructureProvider
     versions:
-      - name: v1.6.2
+      - name: v1.6.2  # used during e2e-test
         value: https://github.com/kubernetes-sigs/cluster-api/releases/download/v1.6.2/infrastructure-components-development.yaml
         type: url
         files:
           - sourcePath: "../data/shared/v1beta1/metadata.yaml"
         replacements:
           - old: "imagePullPolicy: Always"
             new: "imagePullPolicy: IfNotPresent"
+      - name: v1.7.99 # next; use manifest from source files
+                      # added to support tilt
+        value: https://github.com/kubernetes-sigs/cluster-api/releases/latest/download/infrastructure-components-development.yaml
+        type: url
+        files:
+          - sourcePath: "../data/shared/v1beta1/metadata.yaml"
+        replacements:
+          - old: "imagePullPolicy: Always"
+            new: "imagePullPolicy: IfNotPresent"
     files:
       - sourcePath: "../data/infrastructure-docker/cluster-template.yaml"
   - name: k3s