remove ipv6 test for ip6 only infra

.github/workflows/integration.yaml

@@ -79,10 +79,6 @@ jobs:
     steps:
       - name: Check out code
         uses: actions/checkout@v4
-      - name: Setup tmate session
-        uses: mxschmitt/action-tmate@v3
-        with:
-          detached: true
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
@@ -106,6 +102,11 @@ jobs:
           TEST_SUBSTRATE: lxd
           TEST_LXD_IMAGE: ${{ matrix.os }}
           TEST_INSPECTION_REPORTS_DIR: ${{ github.workspace }}/inspection-reports
+          # Test the latest (up to) 6 releases for the flavour
+          # TODO(ben): upgrade nightly to run all flavours
+          TEST_VERSION_UPGRADE_CHANNELS: "recent 6 classic"
+          # Upgrading from 1.30 is not supported.
+          TEST_VERSION_UPGRADE_MIN_RELEASE: "1.31"
         run: |
           cd tests/integration && sg lxd -c 'tox -e integration'
       - name: Prepare inspection reports

tests/integration/tests/test_networking.py

@@ -121,68 +121,3 @@ def test_ipv6_only_on_dualstack_infra(instances: List[harness.Instance]):
     util.stubbornly(retries=config.DEFAULT_WAIT_RETRIES, delay_s=20).until(
         util.ready_nodes(main) == 3
     )
-
-
-@pytest.mark.node_count(3)
-@pytest.mark.disable_k8s_bootstrapping()
-@pytest.mark.network_type("ipv6")
-def test_ipv6_only_on_ipv6_infra(instances: List[harness.Instance]):
-    main = instances[0]
-    joining_cp = instances[1]
-    joining_worker = instances[2]
-
-    ipv6_bootstrap_config = (
-        config.MANIFESTS_DIR / "bootstrap-ipv6-only.yaml"
-    ).read_text()
-
-    main.exec(
-        ["k8s", "bootstrap", "--file", "-"],
-        input=str.encode(ipv6_bootstrap_config),
-    )
-
-    join_token = util.get_join_token(main, joining_cp)
-    joining_cp.exec(["k8s", "join-cluster", join_token])
-
-    join_token_worker = util.get_join_token(main, joining_worker, "--worker")
-    joining_worker.exec(["k8s", "join-cluster", join_token_worker])
-
-    # Deploy nginx with ipv6 service
-    ipv6_config = (config.MANIFESTS_DIR / "nginx-ipv6-only.yaml").read_text()
-    main.exec(["k8s", "kubectl", "apply", "-f", "-"], input=str.encode(ipv6_config))
-    addresses = (
-        util.stubbornly(retries=5, delay_s=3)
-        .on(main)
-        .exec(
-            [
-                "k8s",
-                "kubectl",
-                "get",
-                "svc",
-                "nginx-ipv6",
-                "-o",
-                "jsonpath='{.spec.clusterIPs[*]}'",
-            ],
-            text=True,
-            capture_output=True,
-        )
-        .stdout
-    )
-
-    for ip in addresses.split():
-        addr = ip_address(ip.strip("'"))
-        if isinstance(addr, IPv6Address):
-            address = f"http://[{str(addr)}]"
-        elif isinstance(addr, IPv4Address):
-            assert False, "IPv4 address found in IPv6-only cluster"
-        else:
-            pytest.fail(f"Unknown IP address type: {addr}")
-
-        # need to shell out otherwise this runs into permission errors
-        util.stubbornly(retries=3, delay_s=1).on(main).exec(
-            ["curl", address], shell=True
-        )
-
-    # This might take a while
-    util.stubbornly(retries=config.DEFAULT_WAIT_RETRIES, delay_s=20).until(
-        util.ready_nodes(main) == 3
-    )