Stabilize container functionality

I think we have sufficient experience with this to call this
functionality officially stable.

docs/container.md

@@ -1,12 +1,9 @@
 ---
-parent: Experimental features
-nav_order: 1
+nav_order: 5
 ---
 
 # ostree native containers
 
-For more information on this, see [CoreOS layering](https://github.com/coreos/enhancements/pull/7).
-
 rpm-ostree inherits work in [ostree-rs-ext](https://github.com/ostreedev/ostree-rs-ext/) to
 create "container native ostree" functionality.  This elevates OCI/docker containers to
 be natively supported as a transport mechanism for bootable operating systems.
@@ -16,7 +13,7 @@ be natively supported as a transport mechanism for bootable operating systems.
 Use this to switch to booting from a container image:
 
 ```
-$ rpm-ostree rebase --experimental ostree-unverified-registry:quay.io/coreos-assembler/fcos:testing-devel
+$ rpm-ostree rebase ostree-unverified-registry:quay.io/coreos-assembler/fcos:testing-devel
 ```
 
 In the near future, we hope to push this more officially to `quay.io/fedora/coreos:stable`.

docs/layering.md

@@ -256,7 +256,7 @@ We need to stop the Zincati service so that auto-updates won't interfere with ou
 Next, we call `rpm-ostree` to rebase our system using the image we just pushed to quay.
 
 ```bash
-[core@tutorial ~]$ sudo rpm-ostree rebase --experimental \
+[core@tutorial ~]$ sudo rpm-ostree rebase \
     ostree-unverified-registry:quay.io/<YOURUSER>/my-custom-fcos
 ```
 

rust/src/cliwrap/yumdnf.rs

@@ -198,8 +198,7 @@ fn disposition(opt: Opt, hosttype: SystemHostType) -> Result<RunDisposition> {
                         ImageCmd::Rebase(rebase) => {
                             let container_ref = rebase.to_ostree_container_ref()?;
                             let container_ref = container_ref.to_string();
-                            let experimental = rebase.experimental.then(|| "--experimental");
-                            let cmd = ["rebase"].into_iter().chain(experimental).chain([container_ref.as_str()])
+                            let cmd = ["rebase"].into_iter().chain([container_ref.as_str()])
                                 .map(|s| s.to_string()).collect::<Vec<String>>();
                             RunDisposition::ExecRpmOstree(cmd)
                         },

tests/kolainst/destructive/container-image

@@ -45,8 +45,9 @@ case "${AUTOPKGTEST_REBOOT_MARK:-}" in
     # Since we're switching OS update stream, turn off zincati
     systemctl mask --now zincati
 
-    ostree container encapsulate --compression-fast --repo=/ostree/repo ${checksum} "${image}"
-    rpm-ostree rebase "$image_pull" --experimental | tee out.txt
+    ostree container encapsulate --repo=/ostree/repo ${checksum} "${image}"
+    # This one keeps --experimental, but we also test without it below
+    rpm-ostree rebase --experimental "$image_pull" | tee out.txt
     assert_file_has_content out.txt 'Importing.*'"$image_pull"
     rpmostree_assert_status ".deployments[0][\"container-image-reference\"] == \"ostree-unverified-image:$image\""
     rpmostree_assert_status ".deployments[0][\"checksum\"] == \"${checksum}\""
@@ -57,7 +58,7 @@ case "${AUTOPKGTEST_REBOOT_MARK:-}" in
 
     # Test rebasing back to ostree https://github.com/coreos/rpm-ostree/issues/3677
     rpm-ostree rebase "$checksum"
-    rpm-ostree rebase "$image_pull" --experimental
+    rpm-ostree rebase "$image_pull"
 
     /tmp/autopkgtest-reboot 1
     ;;
@@ -179,7 +180,7 @@ EOF
     fi
     derived=oci:$image_dir:derived
     skopeo copy containers-storage:localhost/fcos-derived $derived
-    rpm-ostree rebase --experimental ostree-unverified-image:$derived
+    rpm-ostree rebase ostree-unverified-image:$derived
     rm $image_dir -rf
     /tmp/autopkgtest-reboot 3
     ;;