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Document Configuring ntp during deployed ceph 

Depends-On: I85b692c21269f1bb69dabd54c1c2212cb03e2afe
Change-Id: Ie5aea0149693aa83cd1c8115c12fc4d395d1bf8b
This commit is contained in:
katarimanoj 2023-03-01 23:51:11 +05:30
parent fb9fcb7275
commit a8775d319f
1 changed files with 47 additions and 0 deletions
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deploy-guide/source/features/deployed_ceph.rst
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@ -177,6 +177,7 @@ The command line interface supports the following options::
[--skip-user-create] [--skip-user-create]
[--skip-hosts-config] [--skip-hosts-config]
[--skip-container-registry-config] [--skip-container-registry-config]
[--skip-ntp]
[--cephadm-ssh-user CEPHADM_SSH_USER] [--cephadm-ssh-user CEPHADM_SSH_USER]
[--stack STACK] [--stack STACK]
[--working-dir WORKING_DIR] [--working-dir WORKING_DIR]
@ -195,6 +196,8 @@ The command line interface supports the following options::
[--ceph-vip CEPH_VIP] [--ceph-vip CEPH_VIP]
[--daemons DAEMONS] [--daemons DAEMONS]
[--single-host-defaults] [--single-host-defaults]
[--ntp-server NTP_SERVER]
[--ntp-heat-env-file NTP_HEAT_ENV_FILE]
[--ceph-spec CEPH_SPEC | --osd-spec OSD_SPEC] [--ceph-spec CEPH_SPEC | --osd-spec OSD_SPEC]
[--crush-hierarchy CRUSH_HIERARCHY] [--crush-hierarchy CRUSH_HIERARCHY]
[--standalone] [--standalone]
@ -227,6 +230,9 @@ The command line interface supports the following options::
--skip-hosts-config Do not update /etc/hosts on deployed servers. By --skip-hosts-config Do not update /etc/hosts on deployed servers. By
default this is configured so overcloud nodes can default this is configured so overcloud nodes can
reach each other and the undercloud by name. reach each other and the undercloud by name.
--skip-ntp Do not install/enable ntp chronyd service. By default
time synchronization service chronyd is installed and
enabled later by tripleo.
--skip-container-registry-config --skip-container-registry-config
Do not update /etc/containers/registries.conf on Do not update /etc/containers/registries.conf on
deployed servers. By default this is configured so deployed servers. By default this is configured so
@ -330,6 +336,14 @@ The command line interface supports the following options::
--single-host-defaults --single-host-defaults
Adjust configuration defaults to suit a single-host Adjust configuration defaults to suit a single-host
Ceph cluster. Ceph cluster.
--ntp-server NTP_SERVER
NTP Servers to be used while configuring chronyd
service. e.g. --ntp-server '0.pool.ntp.org,
1.pool.ntp.org,2.pool.ntp.org'
--ntp-heat-env-file NTP_HEAT_ENV_FILE
Path to existing heat environment file with NTP
servers to be used while configuring chronyd service.
NTP servers are extracted from 'NtpServer' key.
--ceph-spec CEPH_SPEC --ceph-spec CEPH_SPEC
Path to an existing Ceph spec file. If not provided a Path to an existing Ceph spec file. If not provided a
spec will be generated automatically based on --roles- spec will be generated automatically based on --roles-
@ -1133,6 +1147,39 @@ If a variable above is unused, then it defaults to the ones found in
the default ``container_image_prepare_defaults.yaml`` file. In other the default ``container_image_prepare_defaults.yaml`` file. In other
words, the above options are overrides. words, the above options are overrides.
NTP configuration
-----------------
To help Ceph monitors to form a quorum, time synchronization is configured
before Ceph deployment.
By default `openstack overcloud ceph deploy` installs and enables
time synchronization service (chrony) unless `--skip-ntp` is used.
Chrony uses NTP servers defined in ansible-role-chrony role by default.
NTP server/s can be configured explicitly by using either
`--ntp-server` or `--ntp-heat-env-file`.
NTP servers can be passed as a comma-separated string to the deploy command,
for example::
openstack overcloud ceph deploy \
--ntp-server "0.pool.ntp.org,1.pool.ntp.org"
Alternatively, a heat env file which contains the list of NTP servers
can be used as shown here::
openstack overcloud ceph deploy \
--ntp-heat-env-file "/home/stack/ntp-parameters.yaml"
where ntp-parameter.yaml should have the NTP servers defined in the parameter
`NtpServer` as shown in the example::
parameter_defaults:
NtpServer: 0.pool.ntp.org,1.pool.ntp.org
Creating Pools and CephX keys before overcloud deployment (Optional) Creating Pools and CephX keys before overcloud deployment (Optional)
-------------------------------------------------------------------- --------------------------------------------------------------------