integration-k8s-kind

How to run integration tests locally?

Single cluster tests

1. Create kind cluster:

kind create cluster --config cluster-config.yaml --wait 120s

2. Run tests

export CLUSTER_CIDR="172.18.1.128/25" # for monolith suite
go test -count 1 -timeout 2h30m -race -v ./tests_single

Calico single cluster tests

1. Create kind cluster:

kind create cluster --config cluster-config-calico.yaml

2. Apply calico:

kubectl create -f https://raw.githubusercontent.com/projectcalico/calico/v3.26.1/manifests/tigera-operator.yaml
kubectl create -f https://raw.githubusercontent.com/projectcalico/vpp-dataplane/ba374a0583d8ab7938d0e46056c148563ee911ec/yaml/calico/installation-default.yaml
kubectl apply -k calico

3. Wait for a calico-vpp rollout:

kubectl rollout status -n calico-vpp-dataplane ds/calico-vpp-node --timeout=5m

4. Run tests:

 go test -count 1 -timeout 1h30m -race -v \
    ./tests_single/basic_test.go          \
    ./tests_single/heal_test.go           \
    ./tests_single/memory_test.go         \
    ./tests_single/observability_test.go  \
    ./tests_single/feature_test.go        \
    -calico

Multiple cluster scenario(interdomain tests)

1. Create 3 kind clusters:

kind create cluster --name kind-1 --config cluster-config-interdomain.yaml --wait 120s
kind create cluster --name kind-2 --config cluster-config-interdomain.yaml --wait 120s
kind create cluster --name kind-3 --config cluster-config-interdomain.yaml --wait 120s

2. Save kubeconfig of each cluster(you may choose appropriate location)

kind get kubeconfig --name kind-1 > /tmp/config1
kind get kubeconfig --name kind-2 > /tmp/config2
kind get kubeconfig --name kind-3 > /tmp/config3

3. Run interdomain tests with necessary environment variables set

export KUBECONFIG1=/tmp/config1
export KUBECONFIG2=/tmp/config2 
export KUBECONFIG3=/tmp/config3 
export CLUSTER1_CIDR="172.18.1.128/25" 
export CLUSTER2_CIDR="172.18.2.128/25"
export CLUSTER3_CIDR="172.18.3.128/25"
go test -count 1 -timeout 1h -race -v ./tests_interdomain