Fix compat create with NetworkMode=default

The rework of namespace handling for rootless CNI broke this, as CNI networks were being computed incorrectly. Fix handling of CNI networks for the Compat Create REST API for containers, and add a test so we don't regress again. Fixes containers#10569 Signed-off-by: Matthew Heon <[email protected]>
mheon · Jun 7, 2021 · 2601926 · 2601926
1 parent cdf26a3
commit 2601926
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Showing 2 changed files with 11 additions and 2 deletions.
diff --git a/cmd/podman/common/create_opts.go b/cmd/podman/common/create_opts.go
@@ -249,7 +249,7 @@ func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig, rtc *c
 	}
 
 	// netMode
-	nsmode, _, err := specgen.ParseNetworkNamespace(string(cc.HostConfig.NetworkMode), true)
+	nsmode, networks, err := specgen.ParseNetworkNamespace(string(cc.HostConfig.NetworkMode), true)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -322,7 +322,7 @@ func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig, rtc *c
 		netInfo.Aliases = aliases
 		netInfo.CNINetworks = cniNetworks
 	case len(cc.HostConfig.NetworkMode) > 0:
-		netInfo.CNINetworks = []string{string(cc.HostConfig.NetworkMode)}
+		netInfo.CNINetworks = networks
 	}
 
 	parsedTmp := make([]string, 0, len(cc.HostConfig.Tmpfs))

diff --git a/test/apiv2/20-containers.at b/test/apiv2/20-containers.at
@@ -341,3 +341,12 @@ t GET containers/$cid/json 200 \
   .HostConfig.NanoCpus=500000
 
 t DELETE containers/$cid?v=true 204
+
+# Test Compat Create with default network mode (#10569)
+t POST containers/create Image=$IMAGE HostConfig='{"NetworkMode":"default"}' 201 \
+  .Id~[0-9a-f]\\{64\\}
+cid=$(jq -r '.Id' <<<"$output")
+t GET containers/$cid/json 200 \
+  .HostConfig.NetworkMode="bridge"
+
+t DELETE containers/$cid?v=true 204