Add tarred busybox rootfs for groot

[#137336783]

Signed-off-by: Petar Petrov <[email protected]>

jobs/garden/spec

@@ -12,6 +12,7 @@ packages:
   - runc
   - shadow
   - busybox
+  - busybox-tar
   - tar
 
 properties:

manifests/garden-groot-lite.yml

@@ -7,22 +7,23 @@ director_uuid: <%= `bosh target lite > /dev/null 2>&1 && bosh status --uuid` %>
 releases:
   - name: garden-runc
     version: latest
-  - name: grootfs
+  - name: grootfs-release
     version: latest
 
 jobs:
   - name: garden
     instances: 1
     templates:
       - name: grootfs
-        release: grootfs
+        release: grootfs-release
       - name: garden
         release: garden-runc
     resource_pool: garden
     networks:
       - name: garden
     properties:
       garden:
+        default_container_rootfs: /var/vcap/packages/busybox-tar/busybox.tar
         graph_cleanup_threshold_in_mb: 1024
         listen_network: tcp
         listen_address: 0.0.0.0:7777

packages/busybox-tar/packaging

@@ -0,0 +1,21 @@
+set -e -x
+
+# to generate a new busybox tarball:
+#
+# docker run -i -t -cidfile=busybox.cid busybox echo foo
+# docker export $(cat busybox.cid) > busybox.tar.gz
+#
+# to add it to the release:
+#
+# cd garden-runc-release
+# bosh add blob busybox.tar.gz busybox
+# bosh upload blobs
+
+mkdir ${BOSH_INSTALL_TARGET}/busybox
+tar zxf busybox/busybox.tar.gz -C ${BOSH_INSTALL_TARGET}/busybox
+pushd ${BOSH_INSTALL_TARGET}/busybox
+  tar cf busybox.tar *
+popd
+mv ${BOSH_INSTALL_TARGET}/busybox/busybox.tar ${BOSH_INSTALL_TARGET}/busybox.tar
+rm -rf ${BOSH_INSTALL_TARGET}/busybox
+

packages/busybox-tar/spec

@@ -0,0 +1,5 @@
+---
+name: busybox-tar
+
+files:
+  - busybox/busybox.tar.gz