Fix Swift for multinode P+ACO deployment

Current Swift playbook is based on the preassumption of AIO setup.
However, if one goes with default multinode setup
(ansible/inventory/multinode), it follows the P + ACO deployment model,
which proxy-server runs on controller nodes where ACO
(account/container/object services) run on storage nodes.

It will break because swift proxy-server no longer has access (it
shouldn't have) to /srv/node path. This change ensure disk mounting part
only happens on storage node. It also moves chown from proxy-server
Dockerfile to rsyncd because no matter with PACO, P+ACO or P+A+C+O
model, rsyncd is always running on each storage node.

Change-Id: I3aa20454902caa9c84d3901bb91e4e4c93ac5f34
Partially-Implements: blueprint swift-physical-disk
Closes-Bug: #1537544

ansible/roles/swift/tasks/start.yml

@@ -8,10 +8,16 @@
   changed_when: "{{ swift_disk_lookup.stdout.find('localhost | SUCCESS => ') != -1 and
                     (swift_disk_lookup.stdout.split('localhost | SUCCESS => ')[1]|from_json).changed }}"
   failed_when: swift_disk_lookup.stdout.split()[2] != 'SUCCESS'
+  when: inventory_hostname in groups['swift-account-server'] or
+        inventory_hostname in groups['swift-container-server'] or
+        inventory_hostname in groups['swift-object-server']
 
 - name: Reading data from variable
   set_fact:
     swift_disks: "{{ (swift_disk_lookup.stdout.split('localhost | SUCCESS => ')[1]|from_json).disks|from_json }}"
+  when: inventory_hostname in groups['swift-account-server'] or
+        inventory_hostname in groups['swift-container-server'] or
+        inventory_hostname in groups['swift-object-server']
 
 - name: Mounting Swift disks
   mount:
@@ -21,6 +27,9 @@
     state: mounted
     name: "{{ swift_devices_mount_point }}/{{ item['fs_label'] }}"
   with_items: swift_disks
+  when: inventory_hostname in groups['swift-account-server'] or
+        inventory_hostname in groups['swift-container-server'] or
+        inventory_hostname in groups['swift-object-server']
 
 - name: Starting swift-rsyncd container
   kolla_docker:
@@ -43,7 +52,6 @@
     volumes:
       - "{{ node_config_directory }}/swift/:/var/lib/kolla/swift/:ro"
       - "{{ node_config_directory }}/swift-proxy-server/:{{ container_config_directory }}/:ro"
-      - "{{ swift_devices_mount_point }}:{{ swift_devices_mount_point }}"
       - "/var/lib/kolla/dev/log:/dev/log"
   when: inventory_hostname in groups['swift-proxy-server']
 

docker/swift/swift-base/Dockerfile.j2

@@ -33,6 +33,5 @@ RUN ln -s swift-base-source/* swift \
 
 {% endif %}
 
-COPY config-swift.sh /usr/local/bin/kolla_config_swift
 COPY build-swift-ring.py /usr/local/bin/kolla_build_swift_ring
 RUN mkdir /opt/swift

docker/swift/swift-proxy-server/Dockerfile.j2

@@ -10,7 +10,4 @@ RUN yum -y install openstack-swift-proxy \
     {% endif %}
 {% endif %}
 
-COPY extend_start.sh /usr/local/bin/kolla_extend_start
-RUN chmod 755 /usr/local/bin/kolla_extend_start
-
 {{ include_footer }}

docker/swift/swift-proxy-server/extend_start.sh

-#!/bin/bash
-
-source /usr/local/bin/kolla_config_swift

docker/swift/swift-rsyncd/Dockerfile.j2

@@ -13,4 +13,7 @@ RUN apt-get install -y --no-install-recommends rsync \
 
 {% endif %}
 
+COPY extend_start.sh /usr/local/bin/kolla_extend_start
+RUN chmod 755 /usr/local/bin/kolla_extend_start
+
 {{ include_footer }}