Added snap configuration.

Moved openstack env variables out of snapcraft.yaml, and into a
"microtack.rc".

Made openstack-wrapper, which auto sources microstack.rc.

Key off of revised snap.openstack, which supports snapctl config
values in templates. Moved a lot of the overlay into
snap-overlay/templates, and added config values to them. Also writes
templates just once, when you run snap-openstack setup.

Change-Id: Ib0f2e3fc97f491d9ed9dfbafc61dc8e27a8a2b48

snap-overlay/bin/launch.sh

@@ -2,6 +2,8 @@
 
 set -e
 
+source $SNAP_COMMON/etc/microstack.rc
+
 if [ -z "$1" ]; then
     echo "Please specify a name for the server."
     exit 1
@@ -64,4 +66,4 @@ while :; do
     fi
 done
 
-echo "You can also visit the openstack dashboard at 'http://10.20.20.1/'"
+echo "You can also visit the openstack dashboard at 'http://$extgateway/'"

snap-overlay/bin/setup-br-ex

@@ -9,13 +9,15 @@
 
 set -ex
 
+extcidr=$(snapctl get extcidr)
+
 # Create external integration bridge
 ovs-vsctl --retry --may-exist add-br br-ex
 
 # Configure br-ex
-ip address add 10.20.20.1/24 dev br-ex || :
+ip address add $extcidr dev br-ex || :
 ip link set br-ex up || :
 
-sudo iptables -t nat -A POSTROUTING -s 10.20.20.1/24 ! -d 10.20.20.1/24 -j MASQUERADE
+sudo iptables -t nat -A POSTROUTING -s $extcidr ! -d $extcidr -j MASQUERADE
 
 exit 0

snap-overlay/etc/glance/glance.conf.d/database.conf

@@ -1,2 +0,0 @@
-[database]
-connection = mysql+pymysql://glance:glance@10.20.20.1/glance

snap-overlay/etc/keystone/keystone.conf.d/database.conf

@@ -1,2 +0,0 @@
-[database]
-connection = mysql+pymysql://keystone:keystone@10.20.20.1/keystone

snap-overlay/etc/neutron/neutron.conf.d/database.conf

@@ -1,2 +0,0 @@
-[database]
-connection = mysql+pymysql://neutron:neutron@10.20.20.1/neutron

snap-overlay/etc/nova/nova.conf.d/database.conf

@@ -1,5 +0,0 @@
-[database]
-connection = mysql+pymysql://nova:nova@10.20.20.1/nova
-
-[api_database]
-connection = mysql+pymysql://nova_api:nova_api@10.20.20.1/nova_api

snap-overlay/etc/nova/nova.conf.d/glance.conf

@@ -1,2 +0,0 @@
-[glance]
-api_servers = http://10.20.20.1:9292

snap-overlay/etc/nova/nova.conf.d/rabbitmq.conf

@@ -1,2 +0,0 @@
-[DEFAULT]
-transport_url = rabbit://openstack:rabbitmq@10.20.20.1

snap-overlay/snap-openstack.yaml

@@ -38,8 +38,28 @@ setup:
     horizon-nginx.conf.j2: "{snap_common}/etc/nginx/snap/sites-enabled/horizon.conf"
     libvirtd.conf.j2: "{snap_common}/libvirt/libvirtd.conf"
     virtlogd.conf.j2: "{snap_common}/libvirt/virtlogd.conf"
+    microstack.rc.j2: "{snap_common}/etc/microstack.rc"
+    glance.conf.d.keystone.conf.j2: "{snap_common}/etc/glance/glance.conf.d/keystone.conf"
+    nova.conf.d.keystone.conf.j2: "{snap_common}/etc/nova/nova.conf.d/keystone.conf"
+    nova.conf.d.database.conf.j2: "{snap_common}/etc/nova/nova.conf.d/database.conf"
+    nova.conf.d.rabbitmq.conf.j2: "{snap_common}/etc/nova/nova.conf.d/rabbitmq.conf"
+    nova.conf.d.nova-placement.conf.j2: "{snap_common}/etc/nova/nova.conf.d/nova-placement.conf"
+    nova.conf.d.glance.conf.j2: "{snap_common}/etc/nova/nova.conf.d/glance.conf"
+    nova.conf.d.neutron.conf.j2: "{snap_common}/etc/nova/nova.conf.d/neutron.conf"
+    keystone.database.conf.j2: "{snap_common}/etc/keystone/keystone.conf.d/database.conf"
+    glance.database.conf.j2: "{snap_common}/etc/glance/glance.conf.d/database.conf"
+    neutron.keystone.conf.j2: "{snap_common}/etc/neutron/neutron.conf.d/keystone.conf"
+    neutron.nova.conf.j2: "{snap_common}/etc/neutron/neutron.conf.d/nova.conf"
+    neutron.database.conf.j2: "{snap_common}/etc/neutron/neutron.conf.d/database.conf"
+
   chmod:
     "{snap_common}/instances": 0755
+    "{snap_common}/etc/microstack.rc": 0644
+  snap-config-keys:
+    - ospassword
+    - extgateway
+    - extcidr
+    - dns
 entry_points:
   keystone-manage:
     binary: "{snap}/bin/keystone-manage"

snap-overlay/templates/glance.conf.d.keystone.conf.j2

@@ -1,7 +1,7 @@
 [keystone_authtoken]
-auth_uri = http://10.20.20.1:5000
-auth_url = http://10.20.20.1:5000
-memcached_servers = 10.20.20.1:11211
+auth_uri = http://{{ extgateway }}:5000
+auth_url = http://{{ extgateway }}:5000
+memcached_servers = {{ extgateway }}:11211
 auth_type = password
 project_domain_name = default
 user_domain_name = default

snap-overlay/templates/glance.database.conf.j2

@@ -0,0 +1,2 @@
+[database]
+connection = mysql+pymysql://glance:glance@{{ extgateway }}/glance

snap-overlay/templates/keystone.database.conf.j2

@@ -0,0 +1,2 @@
+[database]
+connection = mysql+pymysql://keystone:keystone@{{ extgateway }}/keystone

snap-overlay/templates/microstack.rc.j2

@@ -0,0 +1,9 @@
+export OS_PROJECT_DOMAIN_NAME=default
+export OS_USER_DOMAIN_NAME=default
+export OS_PROJECT_NAME=admin
+export OS_USERNAME=admin
+export OS_PASSWORD={{ ospassword }}
+export OS_AUTH_URL=http://{{ extgateway }}:5000
+export OS_IDENTITY_API_VERSION=3
+export OS_IMAGE_API_VERSION=2
+

snap-overlay/templates/neutron.database.conf.j2

@@ -0,0 +1,2 @@
+[database]
+connection = mysql+pymysql://neutron:neutron@{{ extgateway }}/neutron

snap-overlay/templates/neutron.keystone.conf.j2

@@ -2,9 +2,9 @@
 auth_strategy = keystone
 
 [keystone_authtoken]
-auth_uri = http://10.20.20.1:5000
-auth_url = http://10.20.20.1:5000
-memcached_servers = 10.20.20.1:11211
+auth_uri = http://{{ extgateway }}:5000
+auth_url = http://{{ extgateway }}:5000
+memcached_servers = {{ extgateway }}:11211
 auth_type = password
 project_domain_name = default
 user_domain_name = default

snap-overlay/templates/neutron.nova.conf.j2

@@ -3,7 +3,7 @@ notify_nova_on_port_status_changes = True
 notify_nova_on_port_data_changes = True
 
 [nova]
-auth_url = http://10.20.20.1:5000
+auth_url = http://{{ extgateway }}:5000
 auth_type = password
 project_domain_name = default
 user_domain_name = default

snap-overlay/templates/nova.conf.d.database.conf.j2

@@ -0,0 +1,5 @@
+[database]
+connection = mysql+pymysql://nova:nova@{{ extgateway }}/nova
+
+[api_database]
+connection = mysql+pymysql://nova_api:nova_api@{{ extgateway }}/nova_api

snap-overlay/templates/nova.conf.d.glance.conf.j2

@@ -0,0 +1,2 @@
+[glance]
+api_servers = http://{{ extgateway }}:9292

snap-overlay/templates/nova.conf.d.keystone.conf.j2

@@ -1,7 +1,7 @@
 [keystone_authtoken]
-auth_uri = http://10.20.20.1:5000
-auth_url = http://10.20.20.1:5000
-memcached_servers = 10.20.20.1:11211
+auth_uri = http://{{ extgateway }}:5000
+auth_url = http://{{ extgateway }}:5000
+memcached_servers = {{ extgateway }}:11211
 auth_type = password
 project_domain_name = default
 user_domain_name = default

snap-overlay/templates/nova.conf.d.neutron.conf.j2

@@ -1,7 +1,7 @@
 [neutron]
-url = http://10.20.20.1:9696
-auth_url = http://10.20.20.1:5000
-memcached_servers = 10.20.20.1:11211
+url = http://{{ extgateway }}:9696
+auth_url = http://{{ extgateway }}:5000
+memcached_servers = {{ extgateway }}:11211
 auth_type = password
 project_domain_name = default
 user_domain_name = default

snap-overlay/templates/nova.conf.d.nova-placement.conf.j2

@@ -4,6 +4,6 @@ project_domain_name = default
 project_name = service
 auth_type = password
 user_domain_name = default
-auth_url = http://10.20.20.1:5000
+auth_url = http://{{ extgateway }}:5000
 username = placement
 password = placement

snap-overlay/templates/nova.conf.d.rabbitmq.conf.j2

@@ -0,0 +1,2 @@
+[DEFAULT]
+transport_url = rabbit://openstack:rabbitmq@{{ extgateway }}

snap-wrappers/openstack/openstack-wrapper

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -e
+
+source $SNAP_COMMON/etc/microstack.rc
+
+exec $@

snap/hooks/configure

@@ -1,4 +1,20 @@
-#!/bin/bash -e
+#!/bin/bash
+set -ex
+
+ospassword=$(snapctl get ospassword)
+extgateway=$(snapctl get extgateway)
+extcidr=$(snapctl get extcidr)
+dns=$(snapctl get dns)
+
+if [ -z "$ospassword" -o -z "$extgateway" -o -z "$dns" -o -z "$extcidr"]; then
+    echo "Missing required config value."
+    snapctl get microstack
+    exit 1
+fi
+
+snap-openstack setup # Write out templates
+
+source $SNAP_COMMON/etc/microstack.rc
 
 # Open up networking so that instances can route to the Internet (see
 # bin/setup-br-ex for more networking setup, executed on microstack
@@ -9,25 +25,25 @@ sudo sysctl net.ipv4.ip_forward=1
 echo "Creating OpenStack Databases"
 
 # Wait for MySQL to startup
-while ! nc -z 10.20.20.1 3306; do sleep 0.1; done;
+while ! nc -z $extgateway 3306; do sleep 0.1; done;
 sleep 5
 
 # Wait for rabbitmq to start
-while ! nc -z 10.20.20.1 5672; do sleep 0.1; done;
+while ! nc -z $extgateway 5672; do sleep 0.1; done;
 
 for db in neutron nova nova_api nova_cell0 cinder glance keystone; do
-    echo "CREATE DATABASE IF NOT EXISTS ${db}; GRANT ALL PRIVILEGES ON ${db}.* TO '${db}'@'10.20.20.1' IDENTIFIED BY '${db}';" \
+    echo "CREATE DATABASE IF NOT EXISTS ${db}; GRANT ALL PRIVILEGES ON ${db}.* TO '${db}'@'$extgateway' IDENTIFIED BY '${db}';" \
         | mysql-start-client -u root
 done
 
 # Grant nova user access to cell0
-echo "GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'10.20.20.1' IDENTIFIED BY 'nova';" | mysql-start-client -u root
+echo "GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'$extgateway' IDENTIFIED BY 'nova';" | mysql-start-client -u root
 
-# Endpoints from localhost -> 10.20.20.1
-# TODO Rebuild database so that these are already set to 10.20.20.1,
+# Endpoints from localhost -> $extgateway
+# TODO Rebuild database so that these are already set to $extgateway,
 # after lp:1824176 is addressed, and the process of building a new
 # mysql.tar.xz is less fraught.
-openstack endpoint list | grep localhost | while read line; do openstack endpoint set `echo $line | cut -d" " -f2` --url `echo $line | cut -d" " -f14 | sed 's/localhost/10.20.20.1/'`; done
+openstack endpoint list | grep localhost | while read line; do openstack endpoint set `echo $line | cut -d" " -f2` --url `echo $line | cut -d" " -f14 | sed "s/localhost/$extgateway/"`; done
 
 # RabbitMQ
 echo "Configuring RabbitMQ"
@@ -45,12 +61,12 @@ HOME=$SNAP_COMMON/lib/rabbitmq rabbitmqctl set_permissions openstack ".*" ".*" "
 
 # Glance
 echo "Waiting for glance to start."
-while ! nc -z 10.20.20.1 9292; do sleep 0.1; done;
+while ! nc -z $extgateway 9292; do sleep 0.1; done;
 
 sleep 5
 
 # Wait for identity service
-while ! nc -z 10.20.20.1 5000; do sleep 0.1; done;
+while ! nc -z $extgateway 5000; do sleep 0.1; done;
 
 # Setup the cirros image, which is used by the launch app
 openstack image show cirros || {
@@ -70,7 +86,7 @@ openstack image show cirros || {
 systemctl restart snap.microstack.*virt*
 
 # Wait for horizon
-while ! nc -z 10.20.20.1 80; do sleep 0.1; done;
+while ! nc -z $extgateway 80; do sleep 0.1; done;
 
 # Restart Placement API
 # Workaround for issue w/ base:core18, where the Placement API throws

snap/hooks/install

@@ -1,5 +1,11 @@
-#!/bin/sh
-set -e
+#!/bin/bash
+set -ex
+
+snapctl set \
+        ospassword=keystone \
+        extgateway=10.20.20.1 \
+        extcidr=10.20.20.1/24 \
+        dns=1.1.1.1
 
 # MySQL snapshot for speedy install
 # snapshot is a mysql data dir with
@@ -11,8 +17,10 @@ tar -xJf ${SNAP}/data/mysql.tar.xz -C ${SNAP_COMMON}/lib
 echo "Installing configuration for OpenStack Services"
 for project in neutron nova keystone glance; do
     mkdir -p ${SNAP_COMMON}/etc/${project}/${project}.conf.d
-    cp -r ${SNAP}/etc/${project}/${project}.conf.d/* ${SNAP_COMMON}/etc/${project}/${project}.conf.d
+    cp -r ${SNAP}/etc/${project}/${project}.conf.d/* ${SNAP_COMMON}/etc/${project}/${project}.conf.d || true # Skip conf files that have been moved into templates
 done
 
+snap-openstack setup  # Sets up templates for the first time.
+
 # Configure Keystone Fernet Keys
-snap-openstack keystone-manage fernet_setup --keystone-user root --keystone-group root
+snap-openstack launch keystone-manage fernet_setup --keystone-user root --keystone-group root

snapcraft.yaml

@@ -12,20 +12,11 @@ environment:
   PATH: $SNAP/usr/sbin:$SNAP/usr/bin:$SNAP/sbin:$SNAP/bin:$PATH
   LC_ALL: C
   OS_PLACEMENT_CONFIG_DIR: $SNAP/etc/nova/
-  # admin rc (TODO: put this someplace more sensible)
-  OS_PROJECT_DOMAIN_NAME: default
-  OS_USER_DOMAIN_NAME: default
-  OS_PROJECT_NAME: admin
-  OS_USERNAME: admin
-  OS_PASSWORD: keystone
-  OS_AUTH_URL: http://10.20.20.1:5000
-  OS_IDENTITY_API_VERSION: 3
-  OS_IMAGE_API_VERSION: 2
 
 apps:
   # Openstack
   openstack:
-    command: openstack
+    command: openstack-wrapper openstack
 #    plugs:
 #      - network
 
@@ -37,38 +28,38 @@ apps:
 
   # Keystone
   keystone-uwsgi:
-    command: snap-openstack keystone-uwsgi
+    command: snap-openstack launch keystone-uwsgi
     daemon: simple
 #    plugs:
 #      - network-bind
   keystone-manage:
-    command: snap-openstack keystone-manage
+    command: snap-openstack launch keystone-manage
 #    plugs:
 #      - network
 
   # Nova
   nova-uwsgi:
-    command: snap-openstack nova-uwsgi
+    command: snap-openstack launch nova-uwsgi
     daemon: simple
 #    plugs:
 #      - network-bind
   nova-api:
-    command: snap-openstack nova-api-os-compute
+    command: snap-openstack launch nova-api-os-compute
     daemon: simple
 #    plugs:
 #      - network-bind
   nova-conductor:
-    command: snap-openstack nova-conductor
+    command: snap-openstack launch nova-conductor
     daemon: simple
 #    plugs:
 #      - network
   nova-scheduler:
-    command: snap-openstack nova-scheduler
+    command: snap-openstack launch nova-scheduler
     daemon: simple
 #    plugs:
 #      - network
   nova-compute:
-    command: snap-openstack nova-compute
+    command: snap-openstack launch nova-compute
     daemon: simple
 #    plugs:
 #      - network-bind
@@ -78,24 +69,24 @@ apps:
 #      - libvirt
 #      - openvswitch
   nova-api-metadata:
-    command: snap-openstack nova-api-metadata
+    command: snap-openstack launch nova-api-metadata
     daemon: simple
 #    plugs:
 #      - network-bind
 #      - firewall-control
   nova-manage:
-    command: snap-openstack nova-manage
+    command: snap-openstack launch nova-manage
 #    plugs:
 #      - network
 
   # Neutron
   neutron-api:
-    command: snap-openstack neutron-server
+    command: snap-openstack launch neutron-server
     daemon: simple
 #    plugs:
 #      - network-bind
   neutron-openvswitch-agent:
-    command: snap-openstack neutron-openvswitch-agent
+    command: snap-openstack launch neutron-openvswitch-agent
     daemon: simple
 #    plugs:
 #      - network-bind
@@ -106,7 +97,7 @@ apps:
 #      - system-observe
 #      - openvswitch
   neutron-l3-agent:
-    command: snap-openstack neutron-l3-agent
+    command: snap-openstack launch neutron-l3-agent
     daemon: simple
 #    plugs:
 #      - network-bind
@@ -117,7 +108,7 @@ apps:
 #      - system-observe
 #      - openvswitch
   neutron-dhcp-agent:
-    command: snap-openstack neutron-dhcp-agent
+    command: snap-openstack launch neutron-dhcp-agent
     daemon: simple
 #    plugs:
 #      - network
@@ -128,48 +119,48 @@ apps:
 #      - system-observe
 #      - openvswitch
   neutron-metadata-agent:
-    command: snap-openstack neutron-metadata-agent
+    command: snap-openstack launch neutron-metadata-agent
     daemon: simple
 #    plugs:
 #      - network
 #      - network-bind
 #      - network-control
   neutron-ovs-cleanup:
-    command: snap-openstack neutron-ovs-cleanup
+    command: snap-openstack launch neutron-ovs-cleanup
 #    plugs:
 #      - network
 #      - network-control
 #      - openvswitch
   neutron-netns-cleanup:
-    command: snap-openstack neutron-netns-cleanup
+    command: snap-openstack launch neutron-netns-cleanup
 #    plugs:
 #      - network
 #      - network-control
   neutron-db-manage:
-    command: snap-openstack neutron-db-manage
+    command: snap-openstack launch neutron-db-manage
 #    plugs:
 #      - network
 
   # Glance
   glance-api:
-    command: snap-openstack glance-api
+    command: snap-openstack launch glance-api
     daemon: simple
 #    plugs:
 #      - network-bind
   registry:
-    command: snap-openstack glance-registry
+    command: snap-openstack launch glance-registry
     daemon: simple
 #    plugs:
 #      - network
 #      - network-bind
   glance-manage:
-    command: snap-openstack glance-manage
+    command: snap-openstack launch glance-manage
 #    plugs:
 #      - network
 
   # Openstack Shared Services
   nginx:
-    command: snap-openstack nginx
+    command: snap-openstack launch nginx
     daemon: forking
 #    plugs:
 #      - network-bind
@@ -278,33 +269,33 @@ apps:
 
   # Cinder
   cinder-uwsgi:
-    command: snap-openstack cinder-uwsgi
+    command: snap-openstack launch cinder-uwsgi
 #    daemon: simple
 #    plugs:
 #      - network-bind
   cinder-backup:
-    command: snap-openstack cinder-backup
+    command: snap-openstack launch cinder-backup
 #    daemon: simple
 #    plugs:
 #      - network
   cinder-manage:
-    command: snap-openstack cinder-manage
+    command: snap-openstack launch cinder-manage
 #    plugs:
 #      - network
   cinder-scheduler:
-    command: snap-openstack cinder-scheduler
+    command: snap-openstack launch cinder-scheduler
 #    daemon: simple
 #    plugs:
 #      - network
   cinder-volume:
-    command: snap-openstack cinder-volume
+    command: snap-openstack launch cinder-volume
 #    daemon: simple
 #    plugs:
 #      - network
 
   # Horizon
   horizon-uwsgi:
-    command: snap-openstack horizon-uwsgi
+    command: snap-openstack launch horizon-uwsgi
     daemon: simple
 #    plugs:
 #      - network-bind
@@ -329,7 +320,7 @@ parts:
       - oslo.cache[dogpile]
       - pymysql
       - uwsgi
-      - git+https://github.com/openstack/snap.openstack#egg=snap.openstack
+      - git+https://opendev.org/x/snap.openstack#egg=snap.openstack
       - http://tarballs.openstack.org/nova/nova-stable-rocky.tar.gz
       - http://tarballs.openstack.org/neutron/neutron-stable-rocky.tar.gz
       - http://tarballs.openstack.org/glance/glance-stable-rocky.tar.gz
@@ -377,6 +368,14 @@ parts:
     stage: [$etc]
     prime: [$etc]
 
+  openstack-wrapper:
+    source: ./snap-wrappers/openstack
+    plugin: dump
+    after:
+      - openstack-projects
+    organize:
+      openstack-wrapper: bin/openstack-wrapper
+
   nova-config:
     after: [openstack-projects]
     plugin: dump