Add note about lack of upgrade path
It's not currently possible to upgrade to the cinder-ceph way of doing things with a cloud that relates cinder and ceph-mon directly. Drive-by: Apply README template Related-Bug: #1727184 Change-Id: Iec6caa0ba778fb3a17aba0fea357b05f68ee22be
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README.md
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README.md
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@ -21,6 +21,10 @@ Specialised use cases:
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mapping pools with multiple cinder-ceph applications. For instance, different
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mapping pools with multiple cinder-ceph applications. For instance, different
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pools could be used for HDD or SSD devices. See option `rbd-pool-name` below.
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pools could be used for HDD or SSD devices. See option `rbd-pool-name` below.
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> **Note**: There is currently no upgrade path to using the cinder-ceph charm
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for older deployments that have the cinder and ceph-mon applications related
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directly. This issue is tracked in bug [LP #1727184][lp-bug-1727184].
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# Usage
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# Usage
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## Configuration
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## Configuration
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@ -137,12 +141,18 @@ deployed a relation is needed between them:
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juju add-relation cinder-ceph:ceph-access nova-compute:ceph-access
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juju add-relation cinder-ceph:ceph-access nova-compute:ceph-access
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# Documentation
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The OpenStack Charms project maintains two documentation guides:
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* [OpenStack Charm Guide][cg]: for project information, including development
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and support notes
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* [OpenStack Charms Deployment Guide][cdg]: for charm usage information
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# Bugs
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# Bugs
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Please report bugs on [Launchpad][lp-bugs-charm-cinder-ceph].
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Please report bugs on [Launchpad][lp-bugs-charm-cinder-ceph].
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For general charm questions refer to the [OpenStack Charm Guide][cg].
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<!-- LINKS -->
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<!-- LINKS -->
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[cg]: https://docs.openstack.org/charm-guide
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[cg]: https://docs.openstack.org/charm-guide
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@ -158,3 +168,4 @@ For general charm questions refer to the [OpenStack Charm Guide][cg].
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[lp-bugs-charm-cinder-ceph]: https://bugs.launchpad.net/charm-cinder-ceph/+filebug
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[lp-bugs-charm-cinder-ceph]: https://bugs.launchpad.net/charm-cinder-ceph/+filebug
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[cdg-ceph-erasure-coding]: https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/latest/app-erasure-coding.html
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[cdg-ceph-erasure-coding]: https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/latest/app-erasure-coding.html
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[ceph-bluestore-compression]: https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/#inline-compression
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[ceph-bluestore-compression]: https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/#inline-compression
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[lp-bug-1727184]: https://bugs.launchpad.net/charm-cinder-ceph/+bug/1727184
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