k3s/scripts/test-run-compat

#!/bin/bash

all_services=(
    coredns
    local-path-provisioner
    metrics-server
    traefik
)

export NUM_SERVERS=1
export NUM_AGENTS=1
export WAIT_SERVICES="${all_services[@]}"
export SERVER_ARGS="--node-taint=CriticalAddonsOnly=true:NoExecute"

start-test() {
  echo "Cluster is up"
}
export -f start-test

# --- suppress test failures if the agent is intentionally incompatible with the server version
test-post-hook() {
  if [[ $1 -eq 0 ]]; then
    return
  fi
  grep -sqF 'incompatible down-level server detected' $TEST_DIR/agents/*/logs/system.log
}
export -f test-post-hook

REPO=${REPO:-rancher}
IMAGE_NAME=${IMAGE_NAME:-k3s}
PREVIOUS_CHANNEL=$(grep 'k8s.io/kubernetes v' go.mod | head -n1 | awk '{print $2}' | awk -F. '{print "v1." ($2 - 1)}')
PREVIOUS_VERSION=$(curl -s https://update.k3s.io/v1-release/channels/${PREVIOUS_CHANNEL} -o /dev/null -w '%{redirect_url}' | awk -F/ '{print gensub(/\+/, "-", "g", $NF)}')
STABLE_VERSION=$(curl -s https://update.k3s.io/v1-release/channels/stable -o /dev/null -w '%{redirect_url}' | awk -F/ '{print gensub(/\+/, "-", "g", $NF)}')
LATEST_VERSION=$(curl -s https://update.k3s.io/v1-release/channels/latest -o /dev/null -w '%{redirect_url}' | awk -F/ '{print gensub(/\+/, "-", "g", $NF)}')

# --- create a basic cluster to test for compat with the previous minor version of the server and agent
K3S_IMAGE_SERVER=${REPO}/${IMAGE_NAME}:${PREVIOUS_VERSION} LABEL=PREVIOUS-SERVER run-test
K3S_IMAGE_AGENT=${REPO}/${IMAGE_NAME}:${PREVIOUS_VERSION} LABEL=PREVIOUS-AGENT run-test

# --- create a basic cluster to test for compat with the stable version of the server and agent
K3S_IMAGE_SERVER=${REPO}/${IMAGE_NAME}:${STABLE_VERSION} LABEL=STABLE-SERVER run-test
K3S_IMAGE_AGENT=${REPO}/${IMAGE_NAME}:${STABLE_VERSION} LABEL=STABLE-AGENT run-test

# --- create a basic cluster to test for compat with the latest version of the server and agent
K3S_IMAGE_SERVER=${REPO}/${IMAGE_NAME}:${LATEST_VERSION} LABEL=LATEST-SERVER run-test
K3S_IMAGE_AGENT=${REPO}/${IMAGE_NAME}:${LATEST_VERSION} LABEL=LATEST-AGENT run-test