Add some examples of exporting files from OCI container images as sysexts (#4)

* Add a `crane` sysext which exports `crane` from a multiarch OCI image

* Bump minimum Forklift version

* Add pkg+depl for a new ublue-dx-fonts sysext

* Export the entire filetree of the sysext-dir-ublue-dx-fonts container image

* Add a system extension for Neovim from Alpine Linux

* Bump forklift in CI checks

Author: ethanjli

.github/workflows/check.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        forklift-version: [0.7.2-alpha.0]
+        forklift-version: [0.7.2-alpha.5]
     runs-on: ubuntu-latest
     defaults:
       run:

deployments/crane-systemd-extension/extension/usr/lib/extension-release.d/extension-release.crane

@@ -0,0 +1 @@
+ID=_any

deployments/crane-systemd-extension/forklift-package.yml

@@ -0,0 +1,25 @@
+package:
+  description: A systemd sysext providing crane, a tool for interacting with OCI container images and registries
+  # Note: maintainers describes the maintainer(s) of the Forklift package, not the upstream software
+  maintainers:
+    - name: Ethan Li
+      email: [email protected]
+  license: Apache-2.0
+  sources:
+    - https://github.com/google/go-containerregistry
+
+deployment:
+  provides:
+    file-exports:
+      - description: systemd sysext, named "crane"
+        source: extension
+        target: extensions/crane
+      - description: crane binary
+        source-type: oci-image
+        # Warning: we use the latest label only because docker.io/chainguard/crane doesn't provide
+        # any other labels; in real-world use, you should provide a label which doesn't change, for
+        # reproducibility (and also because Forklift's download cache never updates downloads of
+        # images for any given label)
+        url: cgr.dev/chainguard/crane:latest
+        source: usr/bin/crane
+        target: extensions/crane/usr/bin/crane

deployments/crane.deploy.yml

@@ -0,0 +1 @@
+package: /deployments/crane-systemd-extension

deployments/neovim-systemd-extension/forklift-package.yml

@@ -0,0 +1,18 @@
+package:
+  description: A systemd sysext providing a musl-linked Neovim from Alpine Linux
+  # Note: maintainers describes the maintainer(s) of the Forklift package, not the upstream software
+  maintainers:
+    - name: Ethan Li
+      email: [email protected]
+  license: (Apache-2.0 AND Vim)
+  sources:
+    - https://github.com/neovim/neovim
+
+deployment:
+  provides:
+    file-exports:
+      - description: systemd sysext
+        source-type: oci-image
+        url: ghcr.io/ethanjli/sysext-dir-neovim:sha-b29b12d
+        source: /
+        target: extensions/neovim

deployments/neovim.deploy.yml

@@ -0,0 +1 @@
+package: /deployments/neovim-systemd-extension

deployments/ublue-dx-fonts-systemd-extension/forklift-package.yml

@@ -0,0 +1,17 @@
+package:
+  description: A systemd sysext providing various fonts curated for bluefin-dx/aurora-dx
+  # Note: maintainers describes the maintainer(s) of the Forklift package, not the upstream software
+  maintainers:
+    - name: Ethan Li
+      email: [email protected]
+  # Note: I'm too lazy to go through all the font packages to determine their licenses and sources
+  # for the package declaration; this is just a demo anyways!
+
+deployment:
+  provides:
+    file-exports:
+      - description: systemd sysext
+        source-type: oci-image
+        url: ghcr.io/ethanjli/sysext-dir-ublue-dx-fonts:sha-736cc2d
+        source: /
+        target: extensions/ublue-dx-fonts

deployments/ublue-dx-fonts.deploy.yml

@@ -0,0 +1 @@
+package: /deployments/ublue-dx-fonts-systemd-extension

forklift-pallet.yml

@@ -1,4 +1,4 @@
-forklift-version: v0.7.2-alpha.0
+forklift-version: v0.7.2-alpha.4
 
 pallet:
   path: github.com/ethanjli/pallet-example-exports

forklift-repository.yml

@@ -1,4 +1,4 @@
-forklift-version: v0.7.2-alpha.0
+forklift-version: v0.7.2-alpha.4
 
 repository:
   path: github.com/ethanjli/pallet-example-exports