Article directory
- illustrate
- Enter database method [control node]
-
- Get nova password
- View database container
- Enter the container
- Log in to the database in the container
- View test
- View the install directory process [compute node]
-
- View container
- Enter the container
- Using virsh command process [compute node]
-
- View container
- Enter the container to execute the command to view the virtual machine and its uuid
- Execute commands without entering the container to view the virtual machine and its uuid
Description
- What is container deployment? Needless to say, right?
The container of the computing node is as follows
Enter database method [control node]
Get nova password
First get the password of the nova database
Control node execution: grep mysql /etc/kolla/nova-api/nova.conf [The directory is not fixed, you can use the find command to find the nova.conf file to view], as follows, 1Gr2qFT0LmZ46v0GrFUJmXEFTTBHWVWzofxkxLAn is the password
[root@controller01 ~]# grep mysql /etc/kolla/nova-api/nova.conf connection = mysql + pymysql://nova:[email protected]:3306/nova connection = mysql + pymysql://nova_api:[email protected]:3306/nova_api [root@controller01 ~]#
View database container
There will definitely be a database container, for example, this is mariadb
[root@controller01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES openvswitch_vswitchd ... 0e12fe84c1d1 1.2.101.32:9980/kolla/centos-binary-iscsid:5.0.6.6 "kolla_start" 2 years ago Up 2 years iscsid fcaf8d58d941 1.2.101.32:9980/kolla/centos-binary-mariadb:5.0.6.6 "kolla_start" 2 years ago Up 23 months mariadb 85cb175184b1 1.2.101.32:9980/kolla/centos-binary-memcached:5.0.6.6 "kolla_start" 2 years ago Up 23 months memcached ... [root@controller01 ~]#
Enter the container
[root@controller01 ~]# docker exec -it mariadb /bin/bash (mariadb)[mysql@controller01 /]$ mysql -unova -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 170661721 Server version: 10.0.38-MariaDB-wsrep MariaDB Server, wsrep_25.25.rc3fc46e Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]>
Login database in container
(mariadb)[mysql@controller01 /]$ mysql -unova -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 170666994 Server version: 10.0.38-MariaDB-wsrep MariaDB Server, wsrep_25.25.rc3fc46e Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]>
View tests
MariaDB [(none)]>
MariaDB [(none)]> use nova;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
MariaDB [nova]>
MariaDB [nova]> select * from instances where uuid= '19ec09a5-151b-4111-a4bd-636d10794912' \G
*************************** 1. row ********************* *******
created_at: 2022-01-18 14:15:33
updated_at: 2023-10-12 01:33:59
deleted_at: NULL
ID: 3237
internal_id: NULL
user_id: cd7e88be84f14196a468f443b345288c
project_id: 22fce3ac5d094a32a652555584dd47fb
image_ref:
kernel_id:
ramdisk_id:
launch_index: 0
key_name: NULL
key_data: NULL
power_state: 0
vm_state: active
memory_mb: 65536
vcpus: 16
hostname: rms-database2
host:compute30
user_data: I2Nsb3VkLWNvbmZpZw0KZGlzYWJsZV9yb290OiBGYWxzZQ0KcGFzc3dvcmQ6IGlSbVNEYXRhQmFzZTNKIyEha2UmaiheXikNCmNocGFzc3dkOg0KICAgIGxpc3Q6IHwNCiAgICAgICAgICByb 290OmlSbVNEYXRhQmFzZTNKIyEha2UmaiheXikNCiAgICBleHBpcmU6IEZhbHNlDQpzc2hfcHdhdXRoOiBUcnVl
reservation_id: r-zvgjpx0l
launched_at: 2022-01-18 14:16:02
terminated_at: NULL
display_name: rms-database2
display_description: rms-database2
availability_zone: core
locked: 0
os_type: NULL
launched_on: compute30
instance_type_id: 70
vm_mode: NULL
uuid: 19ec09a5-151b-4111-a4bd-636d10794912
architecture: NULL
root_device_name: /dev/vda
access_ip_v4: NULL
access_ip_v6: NULL
config_drive: True
task_state: NULL
default_ephemeral_device: NULL
default_swap_device: NULL
Progress: 0
auto_disk_config: 0
shutdown_terminate: 0
disable_terminate: 0
root_gb: 200
ephemeral_gb: 0
cell_name: NULL
node:compute30
deleted: 0
locked_by: NULL
cleaned: 0
ephemeral_key_uuid: NULL
1 row in set (0.00 sec)
MariaDB [nova]>
View the install directory process [Compute Node]
View container
- Both nova_compute and nova_libvirt containers can view the instance directory. You can enter either one.
[root@compute30 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 0f14cdcf6f90 1.2.101.32:9980/kolla/centos-binary-neutron-openvswitch-agent:5.0.6.6 "kolla_start" 2 years ago Up 2 years neutron_openvswitch_agent 733b936d9a69 1.2.101.32:9980/kolla/centos-binary-openvswitch-vswitchd:5.0.6.6 "kolla_start" 2 years ago Up 2 years openvswitch_vswitchd d3dfc7bd9741 1.2.101.32:9980/kolla/centos-binary-openvswitch-db-server:5.0.6.6 "kolla_start" 2 years ago Up 2 years openvswitch_db cc979a6d2dc3 1.2.101.32:9980/kolla/centos-binary-nova-compute:5.0.6.6 "kolla_start" 2 years ago Up 4 months nova_compute 2fd8430c10fc 1.2.101.32:9980/kolla/centos-binary-nova-libvirt:5.0.6.6 "kolla_start" 2 years ago Up 2 years nova_libvirt 5317fd6f9dc4 1.2.101.32:9980/kolla/centos-binary-nova-ssh:5.0.6.6 "kolla_start" 2 years ago Up 2 years nova_ssh 63dc84cd0a08 1.2.101.32:9980/kolla/centos-binary-chrony:5.0.6.6 "kolla_start" 2 years ago Up 13 months chrony c502dcb7f5d1 1.2.101.32:9980/kolla/centos-binary-cron:5.0.6.6 "kolla_start" 2 years ago Up 2 years cron 37f17293ad92 1.2.101.32:9980/kolla/centos-binary-kolla-toolbox:5.0.6.6 "kolla_start" 2 years ago Up 2 years kolla_toolbox aa0a7798f731 1.2.101.32:9980/kolla/centos-binary-fluentd:5.0.6.6 "dumb-init --single-…" 2 years ago Up 2 years fluentd [root@compute30 ~]#
Enter the container
- Enter nova_libvirt to view
My instance directory is/var/lib/nova/instances/[If yours is not the same, just use find to search for instances]
[root@compute30 ~]# docker exec -it nova_libvirt bash (nova-libvirt)[root@compute30 /]# cd /var/lib/nova/instances/ (nova-libvirt)[root@compute30 instances]# ls 19ec09a5-151b-4111-a4bd-636d10794912 b0cc2a24-1c9c-46d3-bd3b-ef90b78c871c b7a9b013-d364-4588-b8ae-f6cbd4ba704f _base daaf62bf-ed53-4a16-8 92a-798ac427254b f8a41b8e-c989-4645-9f18-fdeee075c8d9 4fad6565-b24b-4617-bb8e-4110ebd43026 b3b091ee-fcbc-4a2a-8a09-7250ee144f3c b99dc9e3-0d6b-4b3b-965a-d4e10791c4f0 compute_nodes f76744d4-afbc-4d9 2-80e0-cbdb7b30be15 locks (nova-libvirt)[root@compute30 instances]# cd 19ec09a5-151b-4111-a4bd-636d10794912/ (nova-libvirt)[root@compute30 19ec09a5-151b-4111-a4bd-636d10794912]# ls console.log (nova-libvirt)[root@compute30 19ec09a5-151b-4111-a4bd-636d10794912]#
- Enter nova_compute to view
You can see that the display content is the same as nova_libvrit
[root@compute30 ~]# docker exec -it nova_compute bash (nova-compute)[nova@compute30 /]$ cd /var/lib/nova/instances/ (nova-compute)[nova@compute30 /var/lib/nova/instances]$ ls 19ec09a5-151b-4111-a4bd-636d10794912 _base b3b091ee-fcbc-4a2a-8a09-7250ee144f3c b99dc9e3-0d6b-4b3b-965a-d4e10791c4f0 daaf62bf-ed53-4a16 -892a-798ac427254b f8a41b8e-c989-4645-9f18-fdeee075c8d9 4fad6565-b24b-4617-bb8e-4110ebd43026 b0cc2a24-1c9c-46d3-bd3b-ef90b78c871c b7a9b013-d364-4588-b8ae-f6cbd4ba704f compute_nodes f76744d4-afbc-4d92- 80e0-cbdb7b30be15 locks (nova-compute)[nova@compute30 /var/lib/nova/instances]$ cd 19ec09a5-151b-4111-a4bd-636d10794912/ (nova-compute)[nova@compute30 /var/lib/nova/instances/19ec09a5-151b-4111-a4bd-636d10794912]$ ls console.log (nova-compute)[nova@compute30
Use virsh command process [compute node]
View container
- The virsh command is based on the libvirt service, so we need to enter the nova_libvirt container
[root@compute30 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 0f14cdcf6f90 1.2.101.32:9980/kolla/centos-binary-neutron-openvswitch-agent:5.0.6.6 "kolla_start" 2 years ago Up 2 years neutron_openvswitch_agent 733b936d9a69 1.2.101.32:9980/kolla/centos-binary-openvswitch-vswitchd:5.0.6.6 "kolla_start" 2 years ago Up 2 years openvswitch_vswitchd d3dfc7bd9741 1.2.101.32:9980/kolla/centos-binary-openvswitch-db-server:5.0.6.6 "kolla_start" 2 years ago Up 2 years openvswitch_db cc979a6d2dc3 1.2.101.32:9980/kolla/centos-binary-nova-compute:5.0.6.6 "kolla_start" 2 years ago Up 4 months nova_compute 2fd8430c10fc 1.2.101.32:9980/kolla/centos-binary-nova-libvirt:5.0.6.6 "kolla_start" 2 years ago Up 2 years nova_libvirt 5317fd6f9dc4 1.2.101.32:9980/kolla/centos-binary-nova-ssh:5.0.6.6 "kolla_start" 2 years ago Up 2 years nova_ssh 63dc84cd0a08 1.2.101.32:9980/kolla/centos-binary-chrony:5.0.6.6 "kolla_start" 2 years ago Up 13 months chrony c502dcb7f5d1 1.2.101.32:9980/kolla/centos-binary-cron:5.0.6.6 "kolla_start" 2 years ago Up 2 years cron 37f17293ad92 1.2.101.32:9980/kolla/centos-binary-kolla-toolbox:5.0.6.6 "kolla_start" 2 years ago Up 2 years kolla_toolbox aa0a7798f731 1.2.101.32:9980/kolla/centos-binary-fluentd:5.0.6.6 "dumb-init --single-…" 2 years ago Up 2 years fluentd [root@compute30 ~]#
Enter the container to execute the command to view the virtual machine and its uuid
[root@compute30 ~]# docker exec -it nova_libvirt bash (nova-libvirt)[root@compute30 /]# (nova-libvirt)[root@compute30 /]# virsh list --all Id Name State -------------------------------------------------- -- 27 instance-00000c37 running 33 instance-00000cf0 running 41 instance-00000e08 running 45 instance-0000144d running 52 instance-00000c5a running 54 instance-00000c0a running 60 instance-00000d0e running (nova-libvirt)[root@compute30 /]# (nova-libvirt)[root@compute30 /]# virsh domuuid 27 b99dc9e3-0d6b-4b3b-965a-d4e10791c4f0 (nova-libvirt)[root@compute30 /]# (nova-libvirt)[root@compute30 /]# virsh domuuid 33 b0cc2a24-1c9c-46d3-bd3b-ef90b78c871c (nova-libvirt)[root@compute30 /]#
Execute commands without entering the container to view the virtual machine and its uuid
- Command:
docker exec NAMES command[docker ps view NAMES]
[root@compute30 ~]# docker exec nova_libvirt virsh list --all Id Name State -------------------------------------------------- -- 27 instance-00000c37 running 33 instance-00000cf0 running 41 instance-00000e08 running 45 instance-0000144d running 54 instance-00000c0a running 79 instance-00000ca5 running [root@compute30 ~]# [root@compute30 ~]# docker exec nova_libvirt virsh domuuid 27 b99dc9e3-0d6b-4b3b-965a-d4e10791c4f0 [root@compute30 ~]#
- Change a container to check the time and continue testing
[root@compute30 ~]# docker exec nova_compute date Thu Oct 12 17:40:38 CST 2023 [root@compute30 ~]#