Add element to handle generic package installs

We end up needing to install a fair bit of stuff on top of the minimal
images in order to make them useable. Do this in a generic infra package
needs element that can grow to accomodate our needs.

For the future we can hopefully get some of this into dib itself so that
others can easily build instances they can ssh into.

Change-Id: I5826df829971e182cd0713b29df1cf70c119a0ab

nodepool/elements/infra-package-needs/element-deps

@@ -0,0 +1 @@
+package-installs

nodepool/elements/infra-package-needs/package-installs.yaml

@@ -0,0 +1,8 @@
+coreutils:
+cron:
+util-linux:
+openssh-server:
+build-essential:
+python-dev:
+python3-dev:
+uuid-runtime:

nodepool/elements/infra-package-needs/pkg-map

@@ -0,0 +1,16 @@
+{
+  "distro": {
+    "fedora": {
+      "python3-dev": "python3-devel"
+    }
+  },
+  "family": {
+    "redhat": {
+      "cron": "cronie",
+      "build-essential": "glibc-devel gcc make",
+      "python-dev": "python-devel",
+      "python3-dev": "",
+      "uuid-runtime": ""
+    }
+  }
+}

nodepool/elements/node-devstack/package-installs.yaml

@@ -1,3 +0,0 @@
-build-essential:
-python-dev:
-python3-dev:

nodepool/nodepool.yaml

@@ -615,6 +615,7 @@ diskimages:
       - node-devstack
       - cache-bindep
       - growroot
+      - infra-package-needs
     release: jessie
     env-vars:
       TMPDIR: /opt/dib_tmp
@@ -631,6 +632,7 @@ diskimages:
       - node-devstack
       - cache-bindep
       - growroot
+      - infra-package-needs
     release: trusty
     env-vars:
       TMPDIR: /opt/dib_tmp
@@ -645,6 +647,7 @@ diskimages:
       - nodepool-base
       - node-devstack
       - cache-bindep
+      - infra-package-needs
     release: trusty
     env-vars:
       TMPDIR: /opt/dib_tmp
@@ -660,6 +663,7 @@ diskimages:
       - nodepool-base
       - node-devstack
       - cache-bindep
+      - infra-package-needs
     env-vars:
       TMPDIR: /opt/dib_tmp
       DIB_IMAGE_CACHE: /opt/dib_cache
@@ -675,6 +679,7 @@ diskimages:
       - puppet
       - cache-bindep
       - growroot
+      - infra-package-needs
     env-vars:
       TMPDIR: /opt/dib_tmp
       DIB_IMAGE_CACHE: /opt/dib_cache
@@ -690,6 +695,7 @@ diskimages:
       - puppet
       - cache-bindep
       - growroot
+      - infra-package-needs
     release: 23
     env-vars:
       TMPDIR: /opt/dib_tmp