tests: Check that creating / joining a MicroOVN cluster works and tha…

…t the cluster state is healthy

Signed-off-by: Gabriel Mougard <gabriel.mougard@canonical.com>

tests/init_cluster_custom_encap.bats

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+# This is a bash shell fragment -*- bash -*-
+
+load "test_helper/setup_teardown/$(basename "${BATS_TEST_FILENAME//.bats/.bash}")"
+
+setup() {
+    load test_helper/common.bash
+    load test_helper/lxd.bash
+    load test_helper/microovn.bash
+    load ../.bats/bats-support/load.bash
+    load ../.bats/bats-assert/load.bash
+
+    # Ensure TEST_CONTAINERS and EAST_WEST_ADDRS are populated, otherwise the tests below will
+    # provide false positive results.
+    assert [ -n "$TEST_CONTAINERS" ]
+}
+
+@test "Check that custom IP encapsulation works" {
+    local container_services
+    EAST_WEST_ADDRS=()
+    while IFS= read -r line; do
+        EAST_WEST_ADDRS+=("$line")
+    done < "$BATS_TMPDIR/east_west_addrs.txt"
+
+    for pair in "${EAST_WEST_ADDRS[@]}"; do
+        IFS='@' read -r container ip_east_west <<< "$pair"
+
+        container_services=$(microovn_get_cluster_services "$container")
+        if [[ "$container_services" != *"chassis"* ]]; then
+            echo "Skip $container, no chassis services" >&3
+            continue
+        fi
+
+        run lxc_exec \
+            "$container" \
+            "microovn.ovs-vsctl get Open_vSwitch . external_ids:ovn-encap-ip"
+        assert_output -p $ip_east_west
+    done
+
+    local test_filename=tests/init_cluster
+    test_filename+=$(test_is_ipv6_test && echo _ipv6 || true)
+    test_filename+=.bats
+
+    # Run the cluster test with the custom IP encapsulation
+    run bats -F junit $test_filename
+
+    echo "# $output" >&3
+    echo "#" >&3
+}

tests/init_cluster_custom_encap_ipv6.bats

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+init_cluster_custom_encap.bats

tests/test_helper/setup_teardown/init_cluster_custom_encap.bash

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+setup_file() {
+    load test_helper/common.bash
+    load test_helper/lxd.bash
+    load test_helper/microovn.bash
+    load ../.bats/bats-support/load.bash
+    load ../.bats/bats-assert/load.bash
+
+
+    TEST_CONTAINERS=$(container_names "$BATS_TEST_FILENAME" 3)
+    export TEST_CONTAINERS
+    launch_containers jammy $TEST_CONTAINERS
+    wait_containers_ready $TEST_CONTAINERS
+
+    # Create a dedicated bridge for the east-west traffic
+    network_output=$(create_lxd_network "br-east-west")
+    ipv4_subnet=$(echo "$network_output" | cut -d'|' -f1)
+
+    # Give each container an IP address from the subnet
+    east_west_ips_to_containers=$(connect_containers_to_network_ipv4 "$TEST_CONTAINERS" "br-east-west" $ipv4_subnet)
+    IFS=',' read -ra east_west_addrs <<< "$east_west_ips_to_containers"
+    EAST_WEST_ADDRS=("${east_west_addrs[@]}")
+    printf '%s\n' "${EAST_WEST_ADDRS[@]}" > "$BATS_TMPDIR/east_west_addrs.txt"
+
+    install_microovn "$MICROOVN_SNAP_PATH" $TEST_CONTAINERS
+    local leader
+    for pair in "${EAST_WEST_ADDRS[@]}"; do
+        IFS='@' read -r container ip_east_west <<< "$pair"
+
+        local addr
+        addr=$(container_get_default_ip "$container" \
+               "$(test_is_ipv6_test && echo inet6 || echo inet)")
+        assert [ -n "$addr" ]
+        if [ -z "$leader" ]; then
+            microovn_init_create_cluster "$container" "$addr" "$ip_east_west"
+            leader="$container"
+        else
+            local token
+            token=$(microovn_cluster_get_join_token "$leader" "$container")
+            microovn_init_join_cluster "$container" "$addr" "$token" "$ip_east_west"
+        fi
+    done
+}
+
+teardown_file() {
+    delete_containers $TEST_CONTAINERS
+    delete_lxd_network "br-east-west"
+    rm -f "$BATS_TMPDIR/east_west_addrs.txt"
+}

tests/test_helper/setup_teardown/init_cluster_custom_encap_ipv6.bash

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+setup_file() {
+    load test_helper/common.bash
+    load test_helper/lxd.bash
+    load test_helper/microovn.bash
+    load ../.bats/bats-support/load.bash
+    load ../.bats/bats-assert/load.bash
+
+
+    TEST_CONTAINERS=$(container_names "$BATS_TEST_FILENAME" 3)
+    export TEST_CONTAINERS
+    launch_containers jammy $TEST_CONTAINERS
+    wait_containers_ready $TEST_CONTAINERS
+
+    # Create a dedicated bridge for the east-west traffic
+    network_output=$(create_lxd_network "br-east-west")
+    ipv6_subnet=$(echo "$network_output" | cut -d'|' -f2)
+
+    # Give each container an IP address from the subnet
+    east_west_ips_to_containers=$(connect_containers_to_network_ipv6 "$TEST_CONTAINERS" "br-east-west" $ipv6_subnet)
+
+    IFS=',' read -ra east_west_addrs <<< "$east_west_ips_to_containers"
+    EAST_WEST_ADDRS=("${east_west_addrs[@]}")
+    printf '%s\n' "${EAST_WEST_ADDRS[@]}" > "$BATS_TMPDIR/east_west_addrs.txt"
+
+    install_microovn "$MICROOVN_SNAP_PATH" $TEST_CONTAINERS
+    local leader
+    for pair in "${EAST_WEST_ADDRS[@]}"; do
+        IFS='@' read -r container ip_east_west <<< "$pair"
+
+        local addr
+        addr=$(container_get_default_ip "$container" \
+               "$(test_is_ipv6_test && echo inet6 || echo inet)")
+        assert [ -n "$addr" ]
+        if [ -z "$leader" ]; then
+            microovn_init_create_cluster "$container" "$addr" "$ip_east_west"
+            leader="$container"
+        else
+            local token
+            token=$(microovn_cluster_get_join_token "$leader" "$container")
+            microovn_init_join_cluster "$container" "$addr" "$token" "$ip_east_west"
+        fi
+    done
+}
+
+teardown_file() {
+    delete_containers $TEST_CONTAINERS
+    delete_lxd_network "br-east-west"
+    rm -f "$BATS_TMPDIR/east_west_addrs.txt"
+}