Merge "Allow external ceph journals and fix bootstrap"

ansible/roles/ceph/tasks/bootstrap_osds.yml

@@ -2,7 +2,7 @@
 - name: Looking up disks to bootstrap for Ceph
   command: docker exec -t kolla_toolbox /usr/bin/ansible localhost
     -m find_disks
-    -a "partition_name='KOLLA_CEPH_OSD_BOOTSTRAP'"
+    -a "partition_name='KOLLA_CEPH_OSD_BOOTSTRAP' match_mode='prefix'"
   register: osd_lookup
   changed_when: "{{ osd_lookup.stdout.find('localhost | SUCCESS => ') != -1 and (osd_lookup.stdout.split('localhost | SUCCESS => ')[1]|from_json).changed }}"
   failed_when: osd_lookup.stdout.split()[2] != 'SUCCESS'
@@ -14,7 +14,7 @@
 - name: Looking up disks to bootstrap for Ceph
   command: docker exec -t kolla_toolbox /usr/bin/ansible localhost
     -m find_disks
-    -a "partition_name='KOLLA_CEPH_OSD_CACHE_BOOTSTRAP'"
+    -a "partition_name='KOLLA_CEPH_OSD_CACHE_BOOTSTRAP' match_mode='prefix'"
   register: osd_cache_lookup
   changed_when: "{{ osd_cache_lookup.stdout.find('localhost | SUCCESS => ') != -1 and (osd_cache_lookup.stdout.split('localhost | SUCCESS => ')[1]|from_json).changed }}"
   failed_when: osd_cache_lookup.stdout.split()[2] != 'SUCCESS'
@@ -32,6 +32,12 @@
       KOLLA_BOOTSTRAP:
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
       OSD_DEV: "{{ item.1.device }}"
+      OSD_PARTITION: "{{ item.1.partition }}"
+      OSD_PARTITION_NUM: "{{ item.1.partition_num }}"
+      JOURNAL_DEV: "{{ item.1.journal_device }}"
+      JOURNAL_PARTITION: "{{ item.1.journal }}"
+      JOURNAL_PARTITION_NUM: "{{ item.1.journal_num }}"
+      USE_EXTERNAL_JOURNAL: "{{ item.1.external_journal | bool }}"
       OSD_FILESYSTEM: "{{ ceph_osd_filesystem }}"
       OSD_INITIAL_WEIGHT: "{{ osd_initial_weight }}"
       HOSTNAME: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
@@ -56,6 +62,12 @@
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
       CEPH_CACHE:
       OSD_DEV: "{{ item.1.device }}"
+      OSD_PARTITION: "{{ item.1.partition }}"
+      OSD_PARTITION_NUM: "{{ item.1.partition_num }}"
+      JOURNAL_DEV: "{{ item.1.journal_device }}"
+      JOURNAL_PARTITION: "{{ item.1.journal }}"
+      JOURNAL_PARTITION_NUM: "{{ item.1.journal_num }}"
+      USE_EXTERNAL_JOURNAL: "{{ item.1.external_journal | bool }}"
       OSD_FILESYSTEM: "{{ ceph_osd_filesystem }}"
       OSD_INITIAL_WEIGHT: "{{ osd_initial_weight }}"
       HOSTNAME: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"

ansible/roles/ceph/tasks/start_osds.yml

@@ -2,7 +2,7 @@
 - name: Looking up OSDs for Ceph
   command: docker exec -t kolla_toolbox /usr/bin/ansible localhost
     -m find_disks
-    -a "partition_name='KOLLA_CEPH_DATA'"
+    -a "partition_name='KOLLA_CEPH_DATA' match_mode='prefix'"
   register: osd_lookup
   changed_when: "{{ osd_lookup.stdout.find('localhost | SUCCESS => ') != -1 and (osd_lookup.stdout.split('localhost | SUCCESS => ')[1]|from_json).changed }}"
   failed_when: osd_lookup.stdout.split()[2] != 'SUCCESS'
@@ -34,7 +34,7 @@
     environment:
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
       OSD_ID: "{{ item.0.stdout }}"
-      OSD_DEV: "{{ item.1['device'] }}"
+      JOURNAL_PARTITION: "{{ item.1.journal }}"
     image: "{{ ceph_osd_image_full }}"
     name: "ceph_osd_{{ item.0.stdout }}"
     pid_mode: "host"

docker/ceph/ceph-osd/extend_start.sh

@@ -3,28 +3,22 @@
 # Bootstrap and exit if KOLLA_BOOTSTRAP variable is set. This catches all cases
 # of the KOLLA_BOOTSTRAP variable being set, including empty.
 if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
+    # NOTE(SamYaple): Static gpt partcodes
+    CEPH_JOURNAL_TYPE_CODE="45B0969E-9B03-4F30-B4C6-B4B80CEFF106"
+    CEPH_OSD_TYPE_CODE="4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D"
+
     # Wait for ceph quorum before proceeding
     ceph quorum_status
 
-    # Formatting disk for ceph
-    sgdisk --zap-all -- "${OSD_DEV}"
-    sgdisk --new=2:1M:5G --change-name=2:KOLLA_CEPH_JOURNAL --typecode=2:45B0969E-9B03-4F30-B4C6-B4B80CEFF106 --mbrtogpt -- "${OSD_DEV}"
-    sgdisk --largest-new=1 --change-name=1:KOLLA_CEPH_DATA --typecode=1:4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D -- "${OSD_DEV}"
-    # This command may throw errors that we can safely ignore
-    partprobe || true
+    if [[ "${USE_EXTERNAL_JOURNAL}" == "False" ]]; then
+        # Formatting disk for ceph
+        sgdisk --zap-all -- "${OSD_DEV}"
+        sgdisk --new=2:1M:5G -- "${JOURNAL_DEV}"
+        sgdisk --largest-new=1 -- "${OSD_DEV}"
+        # NOTE(SamYaple): This command may throw errors that we can safely ignore
+        partprobe || true
 
-    count=0
-    while [[ "${OSD_PARTITION}x" == "x" ]]; do
-        if [[ "${count}" -gt 5 ]]; then
-            echo "Could not find OSD Partition"
-            exit 1
-        fi
-        sleep 1
-        # We look up the appropriate device path with partition.
-        OSD_PARTITION=$(ls "${OSD_DEV}"* | egrep "${OSD_DEV}p?1")
-        count=$(( count + 1 ))
-    done
-    JOURNAL_PARTITION="${OSD_PARTITION%?}2"
+    fi
 
     OSD_ID=$(ceph osd create)
     OSD_DIR="/var/lib/ceph/osd/ceph-${OSD_ID}"
@@ -56,10 +50,13 @@ if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
 
     # Adding osd to crush map
     ceph osd crush add "${OSD_ID}" "${OSD_INITIAL_WEIGHT}" host="${HOSTNAME}${CEPH_ROOT_NAME:+-${CEPH_ROOT_NAME}}"
+
+    # Setting partition name based on ${OSD_ID}
+    sgdisk "--change-name=${OSD_PARTITION_NUM}:KOLLA_CEPH_DATA_${OSD_ID}" "--typecode=${OSD_PARTITION_NUM}:${CEPH_OSD_TYPE_CODE}" -- "${OSD_DEV}"
+    sgdisk "--change-name=${JOURNAL_PARTITION_NUM}:KOLLA_CEPH_DATA_${OSD_ID}_J" "--typecode=${JOURNAL_PARTITION_NUM}:${CEPH_JOURNAL_TYPE_CODE}" -- "${JOURNAL_DEV}"
+
     exit 0
 fi
 
-# We look up the appropriate journal since we cannot rely on symlinks
-JOURNAL_PARTITION=$(ls "${OSD_DEV}"* | egrep "${OSD_DEV}p?2")
 OSD_DIR="/var/lib/ceph/osd/ceph-${OSD_ID}"
 ARGS="-i ${OSD_ID} --osd-journal ${JOURNAL_PARTITION} -k ${OSD_DIR}/keyring"

docker/kolla-toolbox/find_disks.py

@@ -66,6 +66,61 @@ EXAMPLES = '''
 
 import json
 import pyudev
+import re
+
+
+def is_dev_matched_by_name(dev, name, mode):
+    if dev.get('DEVTYPE', '') == 'partition':
+        dev_name = dev.get('ID_PART_ENTRY_NAME', '')
+    else:
+        dev_name = dev.get('ID_FS_LABEL', '')
+
+    if mode == 'strict':
+        return dev_name == name
+    elif mode == 'prefix':
+        return dev_name.startswith(name)
+    else:
+        return False
+
+
+def find_disk(ct, name, match_mode):
+    for dev in ct.list_devices(subsystem='block'):
+        if is_dev_matched_by_name(dev, name, match_mode):
+            yield dev
+
+
+def extract_disk_info(ct, dev, name):
+    if not dev:
+        return
+    kwargs = dict()
+    kwargs['fs_uuid'] = dev.get('ID_FS_UUID', '')
+    kwargs['fs_label'] = dev.get('ID_FS_LABEL', '')
+    if dev.get('DEVTYPE', '') == 'partition':
+        kwargs['device'] = dev.find_parent('block').device_node
+        kwargs['partition'] = dev.device_node
+        kwargs['partition_num'] = \
+            re.sub(r'.*[^\d$]', '', dev.device_node)
+        if is_dev_matched_by_name(dev, name, 'strict'):
+            kwargs['external_journal'] = False
+            kwargs['journal'] = dev.device_node[:-1] + '2'
+            kwargs['journal_device'] = kwargs['device']
+            kwargs['journal_num'] = 2
+        else:
+            kwargs['external_journal'] = True
+            journal_name = dev.get('ID_PART_ENTRY_NAME', '') + '_J'
+            for journal in find_disk(ct, journal_name, 'strict'):
+                kwargs['journal'] = journal.device_node
+                kwargs['journal_device'] = \
+                    journal.find_parent('block').device_node
+                kwargs['journal_num'] = \
+                    re.sub(r'.*[^\d$]', '', journal.device_node)
+                break
+            if 'journal' not in kwargs:
+                # NOTE(SamYaple): Journal not found, not returning info
+                return
+    else:
+        kwargs['device'] = dev.device_node
+    yield kwargs
 
 
 def main():
@@ -78,33 +133,14 @@ def main():
     match_mode = module.params.get('match_mode')
     name = module.params.get('name')
 
-    def is_dev_matched_by_name(dev, name):
-        if dev.get('DEVTYPE', '') == 'partition':
-            dev_name = dev.get('ID_PART_ENTRY_NAME', '')
-        else:
-            dev_name = dev.get('ID_FS_LABEL', '')
-
-        if match_mode == 'strict':
-            return dev_name == name
-        elif match_mode == 'prefix':
-            return dev_name.startswith(name)
-        else:
-            return False
-
     try:
         ret = list()
         ct = pyudev.Context()
-        for dev in ct.list_devices(subsystem='block'):
-            if is_dev_matched_by_name(dev, name):
-                fs_uuid = dev.get('ID_FS_UUID', '')
-                fs_label = dev.get('ID_FS_LABEL', '')
-                if dev.get('DEVTYPE', '') == 'partition':
-                    device_node = dev.find_parent('block').device_node
-                else:
-                    device_node = dev.device_node
-                ret.append({'device': device_node,
-                            'fs_uuid': fs_uuid,
-                            'fs_label': fs_label})
+        for dev in find_disk(ct, name, match_mode):
+            for info in extract_disk_info(ct, dev, name):
+                if info:
+                    ret.append(info)
+
         module.exit_json(disks=json.dumps(ret))
     except Exception as e:
         module.exit_json(failed=True, msg=repr(e))