images: add reference application container

Includes container-base.

Provides an application container that installs a package (or packages) to
the container and make the specified command the OCI_IMAGE_ENTRYPOINT.

   CONTAINER_APP_CMD : the binary to run via the OCI_IMAGE_ENTRYPOINT
   CONATINER_APP: packages to install to the container

The default entry point is the "date" command.

  % root@qemuarm64-54:~# docker run zeddii/container-app-base
  Mon Oct 28 18:41:23 UTC 2024

  % root@qemuarm64-54:~# docker run --entrypoint "du" zeddii/container-app-base -sh
  2.6M    .

  % podman run docker.io/zeddii/container-app-base
  Mon Oct 28 18:41:23 UTC 2024

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/recipes-extended/images/container-app-base.bb b/recipes-extended/images/container-app-base.bb
new file mode 100644
index 00000000..eabef989
--- /dev/null
+++ b/recipes-extended/images/container-app-base.bb
@@ -0,0 +1,17 @@
+SUMMARY = "Basic Application container image"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+include container-base.bb
+
+# CONTAINER_APP_CMD is the executable to run as the entrypoint of the
+# container. What we have below is a placholder. if you run this
+# container, you'll get the date echo'd
+CONTAINER_APP_CMD ?= "date"
+
+# The container app is the package(s) to install into the container.
+# They must provide the command specified in CONTAINER_APP_CMD
+CONTAINER_APP ?= ""
+
+OCI_IMAGE_ENTRYPOINT = "${CONTAINER_APP_CMD}"
+IMAGE_INSTALL:append = "${CONTAINER_APP}"