* Multi DB with namespace support, Introducing the database_global.json file
for supporting accessing DB's in other namespaces for service running in
linux host
* Updates based on comments
* Adding the j2 templates for database_config and database_global files.
* Updating to retrieve the redis DIR's to be mounted from database_global.json file.
* Additional check to see if asic.conf file exists before sourcing it.
* Updates based on PR comments discussion.
* Review comments update
* Updates to the argument "-n" for namespace used in both context of parsing minigraph and multi DB access.
* Update with the attribute "persistence_for_warm_boot" that was added to database_config.json file earlier.
* Removing the database_config.json file to avioid confusion in future.
We use the database_config.json.j2 file to generate database_config.json files dynamically.
* Update the comments for sudo usage in docker_image_ctrl.j2
* Update with the new logic in PING PONG tests using sonic-db-cli. With this we wait till the
PONG response is received when redis server is up.
* Similar changes in swss and syncd scripts for the PING tests with sonic-db-cli
* Updated with a missing , in the database_config.json.j2 file, Do pip install of j2cli in docker-base-buster.
this is the first step to moving different databases tables into different database instances
in this PR, only handle multiple database instances creation based on user configuration at /etc/sonic/database_config.json
we keep current method to create single database instance if no extra/new DATABASE configuration exist in database_config.json file.
if user try to configure more db instances at database_config.json , we create those new db instances along with the original db instance existing today.
The configuration is as below, later we can add more db related information if needed:
{
...
"DATABASE": {
"redis-db-01" : {
"port" : "6380",
"database": ["APPL_DB", "STATE_DB"]
},
"redis-db-02" : {
"port" : "6381",
"database":["ASIC_DB"]
},
}
...
}
The detail description is at design doc at Azure/SONiC#271
The main idea is : when database.sh started, we check the configuration and generate corresponding scripts.
rc.local service handle old_config copy when loading new images, there is no dependency between rc.local and database service today, for safety and make sure the copy operation are done before database try to read it, we make database service run after rc.local
Then database docker started, we check the configuration and generate corresponding scripts/.conf in database docker as well.
based on those conf, we create databases instances as required.
at last, we ping_pong check database are up and continue
Signed-off-by: Dong Zhang d.zhang@alibaba-inc.com
