1 files changed, 163 insertions, 0 deletions
diff --git a/contrail-analytics/hooks/contrail_analytics_utils.py b/contrail-analytics/hooks/contrail_analytics_utils.py
new file mode 100644
index 0000000..43aefec
--- /dev/null
+++ b/contrail-analytics/hooks/contrail_analytics_utils.py
@@ -0,0 +1,163 @@
+from socket import inet_aton
+import struct
+
+import apt_pkg
+
+from charmhelpers.core.hookenv import (
+    config,
+    related_units,
+    relation_get,
+    relation_ids,
+    status_set,
+    open_port,
+)
+from charmhelpers.core.templating import render
+
+from common_utils import (
+    get_ip,
+    decode_cert,
+    save_file,
+    check_run_prerequisites,
+    run_container,
+    json_loads,
+)
+
+apt_pkg.init()
+config = config()
+
+
+CONTAINER_NAME = "contrail-analytics"
+CONFIG_NAME = "analytics"
+SERVICES_TO_CHECK = ["contrail-collector", "contrail-analytics-api"]
+
+
+def controller_ctx():
+    """Get the ipaddress of all contrail control nodes"""
+    auth_mode = config.get("auth_mode")
+    if auth_mode is None:
+        # NOTE: auth_mode must be transmitted by controller
+        return {}
+
+    controller_ip_list = []
+    for rid in relation_ids("contrail-analytics"):
+        for unit in related_units(rid):
+            if unit.startswith("contrail-controller"):
+                ip = relation_get("private-address", unit, rid)
+                controller_ip_list.append(ip)
+    sort_key = lambda ip: struct.unpack("!L", inet_aton(ip))[0]
+    controller_ip_list = sorted(controller_ip_list, key=sort_key)
+    return {
+        "auth_mode": auth_mode,
+        "controller_servers": controller_ip_list,
+    }
+
+
+def analytics_ctx():
+    """Get the ipaddress of all analytics control nodes"""
+    analytics_ip_list = []
+    for rid in relation_ids("analytics-cluster"):
+        for unit in related_units(rid):
+            ip = relation_get("private-address", unit, rid)
+            analytics_ip_list.append(ip)
+    # add it's own ip address
+    analytics_ip_list.append(get_ip())
+    sort_key = lambda ip: struct.unpack("!L", inet_aton(ip))[0]
+    analytics_ip_list = sorted(analytics_ip_list, key=sort_key)
+    return {"analytics_servers": analytics_ip_list}
+
+
+def analyticsdb_ctx():
+    """Get the ipaddress of all contrail analyticsdb nodes"""
+    analyticsdb_ip_list = []
+    for rid in relation_ids("contrail-analyticsdb"):
+        for unit in related_units(rid):
+            ip = relation_get("private-address", unit, rid)
+            analyticsdb_ip_list.append(ip)
+
+    sort_key = lambda ip: struct.unpack("!L", inet_aton(ip))[0]
+    analyticsdb_ip_list = sorted(analyticsdb_ip_list, key=sort_key)
+    return {"analyticsdb_servers": analyticsdb_ip_list}
+
+
+def get_context():
+    ctx = {}
+    ctx.update(json_loads(config.get("orchestrator_info"), dict()))
+
+    ssl_ca = decode_cert("ssl_ca")
+    ctx["ssl_ca"] = ssl_ca
+    ctx["ssl_cert"] = decode_cert("ssl_cert")
+    ctx["ssl_key"] = decode_cert("ssl_key")
+    ctx["ssl_enabled"] = (ssl_ca is not None and len(ssl_ca) > 0)
+
+    ctx["db_user"] = config.get("db_user")
+    ctx["db_password"] = config.get("db_password")
+
+    ctx["rabbitmq_user"] = config.get("rabbitmq_user")
+    ctx["rabbitmq_password"] = config.get("rabbitmq_password")
+    ctx["rabbitmq_vhost"] = config.get("rabbitmq_vhost")
+
+    ctx.update(controller_ctx())
+    ctx.update(analytics_ctx())
+    ctx.update(analyticsdb_ctx())
+    ctx.update(json_loads(config.get("auth_info"), dict()))
+    return ctx
+
+
+def render_config(ctx=None):
+    if not ctx:
+        ctx = get_context()
+
+    # NOTE: store files in default paths cause no way to pass this path to
+    # some of components (sandesh)
+    ssl_ca = ctx["ssl_ca"]
+    save_file("/etc/contrailctl/ssl/ca-cert.pem", ssl_ca)
+    ssl_cert = ctx["ssl_cert"]
+    save_file("/etc/contrailctl/ssl/server.pem", ssl_cert)
+    ssl_key = ctx["ssl_key"]
+    save_file("/etc/contrailctl/ssl/server-privkey.pem", ssl_key)
+
+    render("analytics.conf", "/etc/contrailctl/analytics.conf", ctx)
+
+
+def update_charm_status(update_config=True):
+    update_config_func = render_config if update_config else None
+    result = check_run_prerequisites(CONTAINER_NAME, CONFIG_NAME,
+                                     update_config_func, SERVICES_TO_CHECK)
+    if not result:
+        return
+
+    ctx = get_context()
+    missing_relations = []
+    if not ctx.get("controller_servers"):
+        missing_relations.append("contrail-controller")
+    if not ctx.get("analyticsdb_servers"):
+        missing_relations.append("contrail-analyticsdb")
+    if missing_relations:
+        status_set('blocked',
+                   'Missing relations: ' + ', '.join(missing_relations))
+        return
+    if not ctx.get("cloud_orchestrator"):
+        status_set('blocked',
+                   'Missing cloud_orchestrator info in relation '
+                   'with contrail-controller.')
+        return
+    if not ctx.get("keystone_ip"):
+        status_set('blocked',
+                   'Missing auth info in relation with contrail-controller.')
+        return
+    if not ctx.get("db_user"):
+        # NOTE: Charms don't allow to deploy cassandra in AllowAll mode
+        status_set('blocked',
+                   'Missing DB user/password info in '
+                   'relation with contrail-controller.')
+    if not ctx.get("rabbitmq_user"):
+        # NOTE: Charms don't allow to deploy rabbitmq with guest access
+        status_set('blocked',
+                   'Missing rabbitmq user/password info in '
+                   'relation with contrail-controller.')
+    # TODO: what should happens if relation departed?
+
+    render_config(ctx)
+    open_port(8081, "TCP")
+
+    run_container(CONTAINER_NAME, "contrail-analytics")