127 lines
4.6 KiB
Bash
Executable File
127 lines
4.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# shellcheck disable=SC2034
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KUBECONFIG="kind.yaml"
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KIND_CLUSTER="kind-cluster-kilo"
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KIND_BINARY="${KIND_BINARY:-kind}"
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KUBECTL_BINARY="${KUBECTL_BINARY:-kubectl}"
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KILO_IMAGE="${KILO_IMAGE:-squat/kilo}"
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is_ready() {
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for pod in $($KUBECTL_BINARY -n "$1" get pods -o name -l "$2"); do
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if ! $KUBECTL_BINARY -n "$1" get "$pod" | tail -n 1 | grep -q Running; then
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return 1;
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fi
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done
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return 0
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}
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# Returns non zero if one pod of the given name in the given namespace is not ready.
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block_until_ready_by_name() {
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block_until_ready "$1" "app.kubernetes.io/name=$2"
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}
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# Blocks until all pods of a deployment are ready.
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block_until_ready() {
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# Just abort after 150s
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for c in {1..30}; do
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if is_ready "$1" "$2"; then
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break
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else
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echo "some $2 pods are not ready, yet. Retries=$c/30"
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sleep 5
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fi
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done
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return 0
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}
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# Block waits until pods are ready. When patching pods, it is not very reliable because sometimes it checkts the state of old pods.
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block() {
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$KUBECTL_BINARY -n "$1" wait -l "app.kubernetes.io/name=$2" pod --for=condition=Ready
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}
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# Set up the kind cluster and deploy Kilo, Adjacency and a helper with curl.
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setup_suite() {
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$KIND_BINARY delete clusters $KIND_CLUSTER > /dev/null
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# Create the kind cluster.
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$KIND_BINARY create cluster --name $KIND_CLUSTER --config ./kind-config.yaml
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# Load the Kilo image into kind.
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docker tag "$KILO_IMAGE" squat/kilo:test
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$KIND_BINARY load docker-image squat/kilo:test --name $KIND_CLUSTER
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# Apply Kilo the the cluster.
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$KUBECTL_BINARY apply -f ../manifests/crds.yaml
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$KUBECTL_BINARY apply -f kilo-kind-userspace.yaml
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block_until_ready_by_name kube-system kilo-userspace
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$KUBECTL_BINARY wait nodes --all --for=condition=Ready
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# wait for coredns
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block_until_ready kube_system k8s-app=kube-dns
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$KUBECTL_BINARY taint node $KIND_CLUSTER-control-plane node-role.kubernetes.io/master:NoSchedule-
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$KUBECTL_BINARY apply -f https://raw.githubusercontent.com/heptoprint/adjacency/master/example.yaml
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$KUBECTL_BINARY apply -f helper-curl.yaml
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block_until_ready_by_name adjacency adjacency
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block_until_ready_by_name default curl
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}
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block_until_ping() {
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for c in {1..30}; do
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keepgoing=1
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# Block until all IP addresses of the adjacency pods are reached.
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for ip in $($KUBECTL_BINARY get pods -l app.kubernetes.io/name=adjacency -o jsonpath='{.items[*].status.podIP}'); do
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ping=$($KUBECTL_BINARY get pods -l app.kubernetes.io/name=curl -o name | xargs -I{} "$KUBECTL_BINARY" exec {} -- /bin/sh -c "curl -s http://$ip:8080/ping")
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if [[ $ping == "pong" ]]; then
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echo "successfully pinged $ip"
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keepgoing=0
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else
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keepgoing=1
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echo "expected \"pong\" got \"$ping\""
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break
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fi
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done
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if [[ $keepgoing == 0 ]]; then
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break
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else
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sleep 5
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fi
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done
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}
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check_adjacent() {
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echo
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$KUBECTL_BINARY get pods -l app.kubernetes.io/name=curl -o name | xargs -I{} "$KUBECTL_BINARY" exec {} -- /bin/sh -c 'curl -s adjacency:8080/?format=fancy'
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assert_equals "12" \
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"$($KUBECTL_BINARY get pods -l app.kubernetes.io/name=curl -o name | xargs -I{} "$KUBECTL_BINARY" exec {} -- /bin/sh -c 'curl -s adjacency:8080/?format=json' | jq | grep -c true)" \
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"Adjacency returned the wrong number of successful pings"
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echo "sleep for 30s (one reconciliation period) and try again..."
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sleep 30
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echo
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$KUBECTL_BINARY get pods -l app.kubernetes.io/name=curl -o name | xargs -I{} "$KUBECTL_BINARY" exec {} -- /bin/sh -c 'curl -s adjacency:8080/?format=fancy'
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assert_equals "12" \
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"$($KUBECTL_BINARY get pods -l app.kubernetes.io/name=curl -o name | xargs -I{} "$KUBECTL_BINARY" exec {} -- /bin/sh -c 'curl -s adjacency:8080/?format=json' | jq | grep -c true)" \
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"Adjacency returned the wrong number of successful pings"
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}
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test_locationmesh() {
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# shellcheck disable=SC2016
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$KUBECTL_BINARY patch ds -n kube-system kilo -p '{"spec": {"template":{"spec":{"containers":[{"name":"kilo","args":["--hostname=$(NODE_NAME)","--create-interface=false","--mesh-granularity=location"]}]}}}}'
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sleep 5
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block_until_ready_by_name kube-system kilo-userspace
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block_until_ping
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$KUBECTL_BINARY wait pod -l app.kubernetes.io/name=adjacency --for=condition=Ready --timeout 3m
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sleep 5
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check_adjacent
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}
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test_fullmesh() {
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# shellcheck disable=SC2016
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$KUBECTL_BINARY patch ds -n kube-system kilo -p '{"spec": {"template":{"spec":{"containers":[{"name":"kilo","args":["--hostname=$(NODE_NAME)","--create-interface=false","--mesh-granularity=full"]}]}}}}'
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sleep 5
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block_until_ready_by_name kube-system kilo-userspace
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block_until_ping
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$KUBECTL_BINARY wait pod -l app.kubernetes.io/name=adjacency --for=condition=Ready --timeout 3m
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sleep 5
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check_adjacent
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}
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teardown_suite () {
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$KIND_BINARY delete clusters $KIND_CLUSTER
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}
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