From 6095c4fac0ff275d01a969d1c48aace1ac673aea Mon Sep 17 00:00:00 2001 From: Paul Holzinger Date: Fri, 24 Sep 2021 10:44:46 +0200 Subject: rootful: do not set XDG_RUNTIME_DIR for cni plugins The dnsname plugin tries to use XDG_RUNTIME_DIR to store files. podman run will have XDG_RUNTIME_DIR set and thus the cni plugin can use it. The problem is that XDG_RUNTIME_DIR is unset for the conmon process for rootful users. This causes issues since the cleanup process is spawned by conmon and thus not have XDG_RUNTIME_DIR set to same value as podman run. Because of it dnsname will not find the config files and cannot correctly cleanup. To fix this we should also unset XDG_RUNTIME_DIR for the cni plugins as rootful. Signed-off-by: Paul Holzinger --- libpod/network/cni/cni_exec.go | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'libpod/network/cni') diff --git a/libpod/network/cni/cni_exec.go b/libpod/network/cni/cni_exec.go index c4d7f49f7..ae857bcfb 100644 --- a/libpod/network/cni/cni_exec.go +++ b/libpod/network/cni/cni_exec.go @@ -30,6 +30,7 @@ import ( "github.com/containernetworking/cni/pkg/invoke" "github.com/containernetworking/cni/pkg/version" + "github.com/containers/podman/v3/pkg/rootless" ) type cniExec struct { @@ -67,6 +68,17 @@ func (e *cniExec) ExecPlugin(ctx context.Context, pluginPath string, stdinData [ c.Stdout = stdout c.Stderr = stderr + // The dnsname plugin tries to use XDG_RUNTIME_DIR to store files. + // podman run will have XDG_RUNTIME_DIR set and thus the cni plugin can use + // it. The problem is that XDG_RUNTIME_DIR is unset for the conmon process + // for rootful users. This causes issues since the cleanup process is spawned + // by conmon and thus not have XDG_RUNTIME_DIR set to same value as podman run. + // Because of it dnsname will not find the config files and cannot correctly cleanup. + // To fix this we should also unset XDG_RUNTIME_DIR for the cni plugins as rootful. + if !rootless.IsRootless() { + c.Env = append(c.Env, "XDG_RUNTIME_DIR=") + } + err := c.Run() if err != nil { return nil, annotatePluginError(err, pluginPath, stdout.Bytes(), stderr.Bytes()) -- cgit v1.2.3-54-g00ecf