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docker in docker #2243

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docker in docker
wind57 Jun 6, 2026
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wind57 Jun 6, 2026
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12 changes: 9 additions & 3 deletions ...rg/springframework/cloud/kubernetes/integration/tests/commons/FixedPortsK3sContainer.java
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Expand Up @@ -45,10 +45,16 @@ final class FixedPortsK3sContainer extends K3sContainer {
private static final String RANCHER_VERSION = "rancher/k3s:v1.35.4-k3s1";

/**
* Command to use when starting rancher. Without "server" option, traefik is not
* installed
* K3s startup command for integration tests.
* <li><code>server</code> starts K3s in server mode and brings up the control
* plane</li>
* <li><code>--disable=metric-server</code> disables the built-in metrics-server
* addon</li>
* <li><code>--tls-san=host.docker.internal</code> adds host.docker.internal to the
* API server certificate SANs so Dockerized test clients can connect without TLS
* hostname verification failures</li>
*/
private static final String RANCHER_COMMAND = "server --disable=metric-server";
private static final String RANCHER_COMMAND = "server --disable=metric-server --tls-san=host.docker.internal";

static final K3sContainer CONTAINER = new FixedPortsK3sContainer(DockerImageName.parse(RANCHER_VERSION))
.configureFixedPorts()
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