add a make target to isntall required tools for e2e

Makefile

@@ -1,4 +1,4 @@
-.PHONY: clean local test linux macos docker push scm-source.json e2e
+.PHONY: clean local test linux macos docker push scm-source.json e2e e2e-tools
 
 BINARY ?= postgres-operator
 BUILD_FLAGS ?= -v
@@ -92,6 +92,11 @@ test:
 	hack/verify-codegen.sh
 	@go test ./...
 
+e2e-tools:
+	@pip3 install -r e2e/requirements.txt
+	@go get -u sigs.k8s.io/kind
+	# assumes kubectl is already isntalled
+
 e2e: docker
 	e2e/run.sh
 	flake8 --exit-zero

delivery.yaml

@@ -45,13 +45,11 @@ pipeline:
           cmd: |
             export PATH=$PATH:$HOME/go/bin
             cd $OPERATOR_TOP_DIR/postgres-operator
-            go get -u sigs.k8s.io/kind
-            pip3 install -r requirements.txt
             echo "INFO install kubectl to test 'kind' from client side"
             (curl -LO --silent https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl &&
             chmod +x ./kubectl &&
             mv ./kubectl /usr/local/bin/kubectl) || exit 1
-            make e2e
+            make e2e-tools e2e
         - desc: 'Push docker image'
           cmd: |
             export PATH=$PATH:$HOME/go/bin

docs/developer.md

@@ -319,7 +319,7 @@ kubectl logs acid-minimal-cluster-0
 
 The operator provides e2e (end-to-end) tests to ensure various infra parts work smoothly together.
 Such tests employ [kind](https://kind.sigs.k8s.io/) to start a local k8s cluster.
-We intend to execute e2e tests during builds, but you can invoke them locally with `make e2e` from the project's top directory. Each e2e execution tests a Postgres operator image built from the current git branch.
+We intend to execute e2e tests during builds, but you can invoke them locally with `make e2e` from the project's top directory; run `make e2e-tools` to install `kind` and Python dependencies before the first run. Each e2e execution tests a Postgres operator image built from the current git branch.
 
 ### Smoke tests
 

e2e/tests/test_smoke.py

@@ -40,7 +40,7 @@ class SmokeTestCase(unittest.TestCase):
             utils.create_from_yaml(k8s_api.k8s_client, "manifests/" + filename)
 
         # submit the most recent operator image built locally
-        # HACK assumes "images lists" returns the most recent image at index 0
+        # HACK assumes "images list" returns the most recent image at index 0
         docker_client = docker.from_env()
         image = docker_client.images.list(name="registry.opensource.zalan.do/acid/postgres-operator")[0].tags[0]
         body = {