wip: mvp integration test with kind

Author: vixus0

Makefile

@@ -21,8 +21,12 @@ build: test
 
 .PHONY: test
 test:
-	go test ./...
+	ginkgo -r -skipPackage integration
 
 .PHONY: fmt
 fmt:
 	go fmt ./...
+
+.PHONY: integration-test
+integration-test: build
+	integration/test.sh

integration/kind.yaml

@@ -3,5 +3,23 @@ apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
   - role: control-plane
   - role: worker
+    kubeadmConfigPatches:
+      - |
+        kind: JoinConfiguration
+        nodeRegistration:
+          kubeletExtraArgs:
+            provider-id: "file://node1"
   - role: worker
+    kubeadmConfigPatches:
+      - |
+        kind: JoinConfiguration
+        nodeRegistration:
+          kubeletExtraArgs:
+            provider-id: "file://node2"
   - role: worker
+    kubeadmConfigPatches:
+      - |
+        kind: JoinConfiguration
+        nodeRegistration:
+          kubeletExtraArgs:
+            provider-id: "file://node3"

integration/test.sh

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+set -o errexit -o nounset -o pipefail
+
+tmpd="$(mktemp -d -p /tmp skuttle.XXXXX)"
+echo "config dir: $tmpd"
+
+export KUBECONFIG="$tmpd/config"
+export NODE_LIST="$tmpd/nodes"
+
+# set up provider nodes
+cat <<EOF >"$NODE_LIST"
+node1
+node3
+EOF
+
+# create kind cluster
+kind delete cluster --name skuttle
+kind create cluster \
+  --config integration/kind.yaml \
+  --name skuttle \
+  --wait 2m
+
+# start skuttle
+./skuttle \
+  --log-level debug \
+  --node-selector "!node-role.kubernetes.io/control-plane" \
+  --not-ready-duration 20s \
+  --providers file \
+  >"$tmpd/log" 2>&1 &
+
+skuttle_pid="$!"
+
+# follow logs
+tail -f "$tmpd/log" &
+
+# make a worker not ready
+docker exec skuttle-worker2 systemctl stop kubelet
+
+# wait for worker to be removed by skuttle
+exitcode=0
+waits=0
+while kubectl get node skuttle-worker2 >/dev/null 2>/dev/null; do
+  sleep 1
+  waits="$(( waits+1 ))"
+
+  if test "$waits" -eq 30; then
+    echo "FAIL: timed out waiting for node deletion"
+    exitcode=1
+  fi
+done
+
+echo "PASS: node deleted by skuttle"
+
+# cleanup
+kill "$skuttle_pid"
+kind delete cluster --name skuttle
+rm -r "$tmpd"
+
+# exit
+exit $exitcode