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-rw-r--r--pkg/specgen/generate/container_create.go7
-rw-r--r--test/system/170-run-userns.bats26
2 files changed, 33 insertions, 0 deletions
diff --git a/pkg/specgen/generate/container_create.go b/pkg/specgen/generate/container_create.go
index 331c9393a..577a67bbe 100644
--- a/pkg/specgen/generate/container_create.go
+++ b/pkg/specgen/generate/container_create.go
@@ -9,6 +9,7 @@ import (
cdi "github.com/container-orchestrated-devices/container-device-interface/pkg"
"github.com/containers/common/libimage"
"github.com/containers/podman/v3/libpod"
+ "github.com/containers/podman/v3/pkg/namespaces"
"github.com/containers/podman/v3/pkg/specgen"
"github.com/containers/podman/v3/pkg/util"
spec "github.com/opencontainers/runtime-spec/specs-go"
@@ -96,6 +97,12 @@ func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGener
return nil, nil, nil, err
}
s.UserNS = defaultNS
+
+ mappings, err := util.ParseIDMapping(namespaces.UsernsMode(s.UserNS.NSMode), nil, nil, "", "")
+ if err != nil {
+ return nil, nil, nil, err
+ }
+ s.IDMappings = mappings
}
if s.NetNS.IsDefault() {
defaultNS, err := GetDefaultNamespaceMode("net", rtc, pod)
diff --git a/test/system/170-run-userns.bats b/test/system/170-run-userns.bats
index 809dd0470..a5be591ef 100644
--- a/test/system/170-run-userns.bats
+++ b/test/system/170-run-userns.bats
@@ -52,3 +52,29 @@ function _require_crun() {
run_podman 125 run --rm --group-add keep-groups --group-add 457 $IMAGE id
is "$output" ".*the '--group-add keep-groups' option is not allowed with any other --group-add options" "Check group leaked into container"
}
+
+@test "podman userns=auto in config file" {
+ skip_if_remote "userns=auto is set on the server"
+
+ if is_rootless; then
+ egrep -q "^$(id -un):" /etc/subuid || skip "no IDs allocated for current user"
+ else
+ egrep -q "^containers:" /etc/subuid || skip "no IDs allocated for user 'containers'"
+ fi
+
+ cat > $PODMAN_TMPDIR/userns_auto.conf <<EOF
+[containers]
+userns="auto"
+EOF
+ # First make sure a user namespace is created
+ CONTAINERS_CONF=$PODMAN_TMPDIR/userns_auto.conf run_podman run -d $IMAGE sleep infinity
+ cid=$output
+
+ run_podman inspect --format '{{.HostConfig.UsernsMode}}' $cid
+ is "$output" "private" "Check that a user namespace was created for the container"
+
+ run_podman rm -t 0 -f $cid
+
+ # Then check that the main user is not mapped into the user namespace
+ CONTAINERS_CONF=$PODMAN_TMPDIR/userns_auto.conf run_podman 0 run --rm $IMAGE awk '{if($2 == "0"){exit 1}}' /proc/self/uid_map /proc/self/gid_map
+}