Re: [Kimchi-devel] [PATCH 1/4 - v3] Fix Template backend create/update for multiple disks

This patch fixes the backend code in order to allow create templates with multiple disks and update them correctly. Backend supports disks jsons like: "disks": [{"size": 3, "format": "qcow"}, {"size": 5, "storagepool":"/plugins/kimchi/storagepools/poolX"}, {"size": 7, "format": "raw", "storagepool": "/plugins/kimchi/storagepools/poolY"} ] If any information is missing, Kimchi will use values from template.conf. Signed-off-by: Rodrigo Trujillo <rodrigo.trujillo(a)linux.vnet.ibm.com&gt; --- src/wok/plugins/kimchi/API.json | 19 ++++++++++++++++++- src/wok/plugins/kimchi/docs/API.md | 3 +++ src/wok/plugins/kimchi/model/templates.py | 9 +++++---- src/wok/plugins/kimchi/osinfo.py | 1 + src/wok/plugins/kimchi/vmtemplate.py | 13 ++++++++++--- 5 files changed, 37 insertions(+), 8 deletions(-) diff --git a/src/wok/plugins/kimchi/API.json b/src/wok/plugins/kimchi/API.json index ab9ac9b..e4cabd6 100644 --- a/src/wok/plugins/kimchi/API.json +++ b/src/wok/plugins/kimchi/API.json @@ -477,6 +477,12 @@ "type": "integer", "minimum": 0 }, + "format": { + "description": "Type of the image of the disk", + "type": "string", + "pattern": "^(bochs|cloop|cow|dmg|qcow|qcow2|qed|raw|vmdk|vpc)$", + "error": "KCHTMPL0027E" + }, "size": { "description": "Size (GB) of the disk", "type": "number", @@ -488,8 +494,13 @@ "type": "string", "pattern": "^/.+$", "error": "KCHTMPL0023E" + }, + "storagepool": { + "description": "Location of the storage pool", + "type": "string", + "pattern": "^/plugins/kimchi/storagepools/[^/]+/?$", + "error": "KCHTMPL0015E" } - } }, "minItems": 1, @@ -660,6 +671,12 @@ "type": "string", "pattern": "^(bochs|cloop|cow|dmg|qcow|qcow2|qed|raw|vmdk|vpc)$", "error": "KCHTMPL0027E" + }, + "storagepool": { + "description": "Location of the storage pool", + "type": "string", + "pattern": "^/plugins/kimchi/storagepools/[^/]+/?$", + "error": "KCHTMPL0015E" } } }, diff --git a/src/wok/plugins/kimchi/docs/API.md b/src/wok/plugins/kimchi/docs/API.md index 5787755..93da547 100644 --- a/src/wok/plugins/kimchi/docs/API.md +++ b/src/wok/plugins/kimchi/docs/API.md @@ -289,6 +289,8 @@ Represents a snapshot of the Virtual Machine's primary monitor. (either *size* or *volume* must be specified): * index: The device index * size: The device size in GB + * format: Format of the image. Valid formats: bochs, cloop, cow, dmg, qcow, qcow2, qed, raw, vmdk, vpc + * storagepool: URI of the storagepool where disk will be created * base: Base image of this disk * graphics *(optional)*: The graphics paramenters of this template @@ -422,6 +424,7 @@ A interface represents available network interface on VM. * size: The device size in GB * volume: A volume name that contains the initial disk contents * format: Format of the image. Valid formats: bochs, cloop, cow, dmg, qcow, qcow2, qed, raw, vmdk, vpc. + * storagepool: URI of the storagepool where template allocates vm disk. * graphics *(optional)*: A dict of graphics paramenters of this template * type: The type of graphics. It can be VNC or spice or None. * vnc: Graphical display using the Virtual Network diff --git a/src/wok/plugins/kimchi/model/templates.py b/src/wok/plugins/kimchi/model/templates.py index 47b2c9e..bac6e47 100644 --- a/src/wok/plugins/kimchi/model/templates.py +++ b/src/wok/plugins/kimchi/model/templates.py @@ -234,8 +234,9 @@ class LibvirtVMTemplate(VMTemplate): self.conn = conn VMTemplate.__init__(self, args, scan) - def _storage_validate(self): - pool_uri = self.info['storagepool'] + def _storage_validate(self, pool_uri=None): + if pool_uri is None: + pool_uri = self.info['storagepool'] pool_name = pool_name_from_uri(pool_uri) try: conn = self.conn.get() @@ -278,8 +279,8 @@ class LibvirtVMTemplate(VMTemplate): xml = pool.XMLDesc(0) return xpath_get_text(xml, "/pool/target/path")[0] - def _get_storage_type(self): - pool = self._storage_validate() + def _get_storage_type(self, pool_uri=None): + pool = self._storage_validate(pool_uri) xml = pool.XMLDesc(0) return xpath_get_text(xml, "/pool/@type")[0] diff --git a/src/wok/plugins/kimchi/osinfo.py b/src/wok/plugins/kimchi/osinfo.py index 30ecd4f..12e5b4b 100644 --- a/src/wok/plugins/kimchi/osinfo.py +++ b/src/wok/plugins/kimchi/osinfo.py @@ -158,6 +158,7 @@ def _get_tmpl_defaults(): for disk in storage_section.keys(): data = storage_section[disk] data['index'] = int(disk.split('.')[1]) + data['storagepool'] = defaults['storagepool'] defaults['disks'].append(data) # Parse processor section to get cpus and cpu_topology values diff --git a/src/wok/plugins/kimchi/vmtemplate.py b/src/wok/plugins/kimchi/vmtemplate.py index 3097b66..35210a3 100644 --- a/src/wok/plugins/kimchi/vmtemplate.py +++ b/src/wok/plugins/kimchi/vmtemplate.py @@ -76,14 +76,21 @@ class VMTemplate(object): graphics.update(graph_args) args['graphics'] = graphics

+ # Support to create Template with multiple disks + for i, disk in enumerate(self.info['disks']): + self.info['disks'][i]['storagepooltype'] = \ + self._get_storage_type(disk['storagepool']) +

# Merge disks dict default_disk = self.info['disks'][0] for i, d in enumerate(args.get('disks', [])): disk = dict(default_disk) + disk['index'] = i disk.update(d) - + disk['storagepooltype'] = self._get_storage_type( + disk['storagepool']) # Assign right disk format to logical and [i]scsi storagepools - if self._get_storage_type() in ['logical', 'iscsi', 'scsi']: + if disk['storagepooltype'] in ['logical', 'iscsi', 'scsi']: disk['format'] = 'raw' args['disks'][i] = disk @@ -401,7 +408,7 @@ class VMTemplate(object): def _get_storage_path(self): return '' - def _get_storage_type(self): + def _get_storage_type(self, pool=None): return '' def _get_volume_path(self):