render "join" script into config map

example/vagrant-input-config.yaml

@@ -50,3 +50,15 @@ spec:
     - 8.8.4.4
   #http_proxy: http://proxy.example.com:8080
   #https_proxy: https://proxy.example.com:8080
+---
+apiVersion: promenade/v1
+kind: Versions
+metadata:
+  cluster: example
+  name: example
+  target: all
+spec:
+  images:
+    promenade: quay.io/attcomdev/promenade:latest
+  packages:
+    docker: docker.io=1.12.6-0ubuntu1~16.04.1

promenade/config.py

@@ -33,6 +33,7 @@ class Document:
         'Node',
         'PrivateKey',
         'PublicKey',
+        'Versions',
     }
 
     def __init__(self, data):
@@ -68,6 +69,9 @@ class Document:
     def __getitem__(self, key):
         return self.data['spec'][key]
 
+    def get(self, key, default=None):
+        return self.data['spec'].get(key, default)
+
 
 class Configuration:
     def __init__(self, documents):

promenade/generator.py

@@ -33,6 +33,7 @@ class Generator:
     def generate_all(self, output_dir):
         cluster = self.input_config['Cluster']
         network = self.input_config['Network']
+        versions = self.input_config['Versions']
 
         cluster_name = cluster.metadata['name']
         LOG.info('Generating configuration for cluster "%s"', cluster_name)
@@ -91,6 +92,7 @@ class Generator:
             network,
             sa_pub,
             sa_priv,
+            versions,
         ]
 
         for hostname, data in cluster['nodes'].items():
@@ -142,6 +144,7 @@ class Generator:
                 node,
                 proxy_cert,
                 proxy_cert_key,
+                versions,
             ]
             role_specific_documents = []
 

promenade/renderer.py

@@ -38,7 +38,9 @@ class Renderer:
 
         LOG.debug('Templating "%s" into "%s"', path, target_path)
 
-        env = jinja2.Environment(undefined=jinja2.StrictUndefined)
+        env = jinja2.Environment(
+                loader=jinja2.PackageLoader('promenade', 'templates/include'),
+                undefined=jinja2.StrictUndefined)
         env.filters['b64enc'] = _base64_encode
 
         with open(path) as f:

promenade/templates/genesis/etc/kubernetes/asset-loader/assets/configmap-promenade-join.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: drydock
+spec: {}
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: promenade-join-sh
+  namespace: drydock
+data:
+  join.sh: |-
+{%- filter indent(4, True) %}
+{% include "up.sh" %}
+{%- endfilter %}

promenade/templates/include/up.sh

@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+
+if [ "$(id -u)" != "0" ]; then
+   echo "This script must be run as root." 1>&2
+   exit 1
+fi
+
+if [ "x$1" = "x" ]; then
+    echo "Path to node configuration required." 1>&2
+    exit 1
+fi
+
+set -ex
+
+#Proxy Variables
+http_proxy={{ config['Network'].get('http_proxy', '') }}
+https_proxy={{ config['Network'].get('https_proxy', '') }}
+no_proxy={{ config['Network'].get('no_proxy', '') }}
+
+DOCKER_HTTP_PROXY=${DOCKER_HTTP_PROXY:-${HTTP_PROXY:-${http_proxy}}}
+DOCKER_HTTPS_PROXY=${DOCKER_HTTPS_PROXY:-${HTTPS_PROXY:-${https_proxy}}}
+DOCKER_NO_PROXY=${DOCKER_NO_PROXY:-${NO_PROXY:-${no_proxy}}}
+
+
+mkdir -p /etc/docker
+cat <<EOS > /etc/docker/daemon.json
+{
+  "live-restore": true,
+  "storage-driver": "overlay2"
+}
+EOS
+
+#Configuration for Docker Behind a Proxy
+mkdir -p /etc/systemd/system/docker.service.d
+
+#Set HTTPS Proxy Variable
+cat <<EOF > /etc/systemd/system/docker.service.d/http-proxy.conf
+[Service]
+Environment="HTTP_PROXY=${DOCKER_HTTP_PROXY}"
+EOF
+
+#Set HTTPS Proxy Variable
+cat <<EOF > /etc/systemd/system/docker.service.d/https-proxy.conf
+[Service]
+Environment="HTTPS_PROXY=${DOCKER_HTTPS_PROXY}"
+EOF
+
+#Set No Proxy Variable
+cat <<EOF > /etc/systemd/system/docker.service.d/no-proxy.conf
+[Service]
+Environment="NO_PROXY=${DOCKER_NO_PROXY}"
+EOF
+
+#Reload systemd and docker if present
+systemctl daemon-reload
+systemctl restart docker || true
+
+export DEBIAN_FRONTEND=noninteractive
+apt-get update -qq
+apt-get install -y -qq --no-install-recommends \
+    {{ config['Versions']['packages']['docker'] }}
+
+if [ -f "${PROMENADE_LOAD_IMAGE}" ]; then
+  echo === Loading updated promenade image ===
+  docker load -i "${PROMENADE_LOAD_IMAGE}"
+fi
+
+docker run -t --rm \
+    --net host \
+    -v /:/target \
+    {{ config['Versions']['images']['promenade'] }} \
+    promenade \
+        -v \
+        up \
+            --hostname $(hostname) \
+            --config-path /target$(realpath $1) 2>&1
+
+touch /var/lib/prom.done