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author | Jason T. Greene <jason@stacksmash.com> | 2021-09-21 22:32:49 -0500 |
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committer | Jason T. Greene <jason@stacksmash.com> | 2021-09-24 15:08:57 -0500 |
commit | b3307bc9caa2006be146d8dc617fe8b729e80193 (patch) | |
tree | 8415d19905cb5a779e4e18a6c2d6b59865f6ccbb | |
parent | aa628b82b1c2f04fb3a9a9207bb6d6bddb497fbb (diff) | |
download | podman-b3307bc9caa2006be146d8dc617fe8b729e80193.tar.gz podman-b3307bc9caa2006be146d8dc617fe8b729e80193.tar.bz2 podman-b3307bc9caa2006be146d8dc617fe8b729e80193.zip |
Disable docker and alias to podman in FCOS ignition
Signed-off-by: Jason Greene <jason.greene@redhat.com>
Co-authored-by: Dusty Mabe <dusty@dustymabe.com>
-rw-r--r-- | pkg/machine/ignition.go | 88 |
1 files changed, 84 insertions, 4 deletions
diff --git a/pkg/machine/ignition.go b/pkg/machine/ignition.go index 89b556b14..e211f5ea6 100644 --- a/pkg/machine/ignition.go +++ b/pkg/machine/ignition.go @@ -6,6 +6,7 @@ import ( "encoding/json" "fmt" "io/ioutil" + "net/url" ) /* @@ -80,6 +81,7 @@ func NewIgnitionFile(ign DynamicIgnition) error { // so a listening host knows it can being interacting with it ready := `[Unit] Requires=dev-virtio\\x2dports-%s.device +After=remove-moby.service OnFailure=emergency.target OnFailureJobMode=isolate [Service] @@ -89,6 +91,23 @@ ExecStart=/bin/sh -c '/usr/bin/echo Ready >/dev/%s' [Install] RequiredBy=multi-user.target ` + deMoby := `[Unit] +Description=Remove moby-engine +# Run once for the machine +After=systemd-machine-id-commit.service +Before=zincati.service +ConditionPathExists=!/var/lib/%N.stamp + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=/usr/bin/rpm-ostree override remove moby-engine +ExecStart=/usr/bin/rpm-ostree ex apply-live --allow-replacement +ExecStartPost=/bin/touch /var/lib/%N.stamp + +[Install] +WantedBy=multi-user.target + ` _ = ready ignSystemd := Systemd{ Units: []Unit{ @@ -101,6 +120,21 @@ RequiredBy=multi-user.target Name: "ready.service", Contents: strToPtr(fmt.Sprintf(ready, "vport1p1", "vport1p1")), }, + { + Enabled: boolToPtr(false), + Name: "docker.service", + Mask: boolToPtr(true), + }, + { + Enabled: boolToPtr(false), + Name: "docker.socket", + Mask: boolToPtr(true), + }, + { + Enabled: boolToPtr(true), + Name: "remove-moby.service", + Contents: &deMoby, + }, }} ignConfig := Config{ Ignition: ignVersion, @@ -161,6 +195,22 @@ func getFiles(usrName string) []File { var ( files []File ) + + lingerExample := `[Unit] +Description=A systemd user unit demo +After=network-online.target +Wants=network-online.target podman.socket +[Service] +ExecStart=/usr/bin/sleep infinity +` + containers := `[containers] +netns="bridge" +rootless_networking="cni" +` + rootContainers := `[engine] +machine_enabled=true +` + // Add a fake systemd service to get the user socket rolling files = append(files, File{ Node: Node{ @@ -171,7 +221,7 @@ func getFiles(usrName string) []File { FileEmbedded1: FileEmbedded1{ Append: nil, Contents: Resource{ - Source: strToPtr("data:,%5BUnit%5D%0ADescription%3DA%20systemd%20user%20unit%20demo%0AAfter%3Dnetwork-online.target%0AWants%3Dnetwork-online.target%20podman.socket%0A%5BService%5D%0AExecStart%3D%2Fusr%2Fbin%2Fsleep%20infinity%0A"), + Source: encodeDataURLPtr(lingerExample), }, Mode: intToPtr(0744), }, @@ -188,7 +238,7 @@ func getFiles(usrName string) []File { FileEmbedded1: FileEmbedded1{ Append: nil, Contents: Resource{ - Source: strToPtr("data:,%5Bcontainers%5D%0D%0Anetns%3D%22bridge%22%0D%0Arootless_networking%3D%22cni%22"), + Source: encodeDataURLPtr(containers), }, Mode: intToPtr(0744), }, @@ -213,7 +263,7 @@ func getFiles(usrName string) []File { FileEmbedded1: FileEmbedded1{ Append: nil, Contents: Resource{ - Source: strToPtr("data:,%5Bengine%5D%0Amachine_enabled%3Dtrue%0A"), + Source: encodeDataURLPtr(rootContainers), }, Mode: intToPtr(0644), }, @@ -233,7 +283,22 @@ func getFiles(usrName string) []File { FileEmbedded1: FileEmbedded1{ Append: nil, Contents: Resource{ - Source: strToPtr("data:,unqualified-search-registries%3D%5B%22docker.io%22%5D"), + Source: encodeDataURLPtr("unqualified-search-registries=[\"docker.io\"]\n"), + }, + Mode: intToPtr(0644), + }, + }) + + files = append(files, File{ + Node: Node{ + Path: "/etc/tmpfiles.d/podman-docker.conf", + }, + FileEmbedded1: FileEmbedded1{ + Append: nil, + // Create a symlink from the docker socket to the podman socket. + // Taken from https://github.com/containers/podman/blob/main/contrib/systemd/system/podman-docker.conf + Contents: Resource{ + Source: encodeDataURLPtr("L+ /run/docker.sock - - - - /run/podman/podman.sock\n"), }, Mode: intToPtr(0644), }, @@ -253,5 +318,20 @@ func getLinks(usrName string) []Link { Hard: boolToPtr(false), Target: "/home/" + usrName + "/.config/systemd/user/linger-example.service", }, + }, { + Node: Node{ + Group: getNodeGrp("root"), + Path: "/usr/local/bin/docker", + Overwrite: boolToPtr(true), + User: getNodeUsr("root"), + }, + LinkEmbedded1: LinkEmbedded1{ + Hard: boolToPtr(false), + Target: "/usr/bin/podman", + }, }} } + +func encodeDataURLPtr(contents string) *string { + return strToPtr(fmt.Sprintf("data:,%s", url.PathEscape(contents))) +} |