Merge pull request #8692 from Mordred/feat/scheduler-k3s-compression

Enable compression middleware for traefik when using scheduler-k3s

tests/unit/scheduler-k3s-certs-redirect.bats

@@ -63,7 +63,7 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run /bin/bash -c "kubectl get ingressroutes.traefik.io ${TEST_APP}-web-http-80-5000 -n default -o jsonpath='{.spec.routes[0].middlewares[0].name}'"
+  run /bin/bash -c "kubectl get ingressroutes.traefik.io ${TEST_APP}-web-http-80-5000 -n default -o jsonpath='{.spec.routes[0].middlewares[1].name}'"
   echo "output: $output"
   echo "status: $status"
   assert_success

tests/unit/scheduler-k3s-compression.bats

@@ -0,0 +1,92 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+TEST_APP="rdmtestapp"
+
+setup_local_tls() {
+  TLS=$BATS_TMPDIR/tls
+  mkdir -p $TLS
+  tar xf $BATS_TEST_DIRNAME/server_ssl.tar -C $TLS
+  sudo chown -R dokku:dokku $TLS
+}
+
+teardown_local_tls() {
+  TLS=$BATS_TMPDIR/tls
+  rm -R $TLS
+}
+
+setup() {
+  uninstall_k3s || true
+  global_setup
+  dokku nginx:stop
+  export KUBECONFIG="/etc/rancher/k3s/k3s.yaml"
+  setup_local_tls
+}
+
+teardown() {
+  global_teardown
+  dokku nginx:start
+  uninstall_k3s || true
+  teardown_local_tls
+}
+
+assert_http_localhost_header() {
+  local scheme="$1" domain="$2" port="${3:-80}" path="${4:-/}" accept_encoding="$5" expected_header="$6"
+  local retries="${HTTP_ASSERT_RETRIES:-30}" attempt=1
+
+  while [[ "$attempt" -lt "$retries" ]]; do
+    run /bin/bash -c "curl --connect-to '$domain:$port:localhost:$port' -kSsD - -o /dev/null -H 'Accept-Encoding: $accept_encoding' '$scheme://$domain:$port$path' | tr -d '\r' | grep -i '^$expected_header$'"
+    [[ "$status" -eq 0 ]] && break
+    sleep 1
+    attempt=$((attempt + 1))
+  done
+
+  echo "output: $output"
+  echo "status: $status"
+  echo "attempts: $attempt"
+  assert_success
+  assert_output_contains "$expected_header"
+}
+
+@test "(scheduler-k3s) [ingress] traefik compression middleware adds gzip response header" {
+  if [[ -z "$DOCKERHUB_USERNAME" ]] || [[ -z "$DOCKERHUB_TOKEN" ]]; then
+    skip "skipping due to missing docker.io credentials DOCKERHUB_USERNAME:DOCKERHUB_TOKEN"
+  fi
+
+  INGRESS_CLASS=traefik install_k3s
+
+  run /bin/bash -c "dokku apps:create $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku domains:set $TEST_APP $TEST_APP.dokku.me"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku certs:add $TEST_APP $BATS_TMPDIR/tls/server.crt $BATS_TMPDIR/tls/server.key"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python "dokku@$DOKKU_DOMAIN:$TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "sleep 30"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "kubectl get ingressroutes.traefik.io ${TEST_APP}-web-http-80-5000 -n default -o jsonpath='{.spec.routes[0].middlewares[0].name}'"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "${TEST_APP}-web-compression"
+
+  assert_http_localhost_response "https" "$TEST_APP.dokku.me" "443" "" "python/http.server"
+  assert_http_localhost_header "https" "$TEST_APP.dokku.me" "443" "/" "gzip" "content-encoding: gzip"
+}