问题
I have a environment variable MY_HOME
which has a path to a directory /home/abc
Now, I have a redis.conf
file In which I need to set this path like this
**redis.conf**
pidfile $MY_HOME/local/var/pids/redis.pid
logfile $MY_HOME/local/var/log/redis.log
dir $MY_HOME/local/var/lib/redis/
like we do in command line, so that my config file picks the path based on the Environment variable.
回答1:
Because Redis can read its config from stdin
, I do something very similar to what @jolestar suggested. I put placeholder variables in my redis.conf
and then replace them using sed
in my Redis launcher. For example:
==========
$MY_HOME/redis/redis.conf
==========
...
pidfile {DIR}/pids/server{n}.pid
port 123{n}
...
Then I have a script to start Redis:
==========
runredis.sh
==========
DIR=$MY_HOME/redis
for n in {1..4}; do
echo "starting redis-server #$n ..."
sed -e "s/{n}/$n/g" -e "s/{DIR}/$DIR/g" < $DIR/redis.conf | redis-server -
done
I've been using this approach forever and it works out well.
回答2:
i also find a solution,but redis config is no support for env var. i think have 2 method:
- start up redis by a script,script get env var and change redis config.
- start up redis by command line,and send env var as parameter.
回答3:
this is not supported by Redis, however it's achievable with the use of envsubst (which's installed by default on almost all modern distros) -to substitute in the values of environment variables before running redis-server
.
envsubst '$HOME:$MY_HOME' < ~/.tmpl_redis.conf > ~/.redis.conf && redis-server ~/.redis.conf
# or
envsubst '$MY_HOME' < ~/.tmpl_redis.conf > ~/.redis.conf && redis-server !#:5 # 5th argument from the previous command
来源:https://stackoverflow.com/questions/19452637/setting-dynamic-path-in-the-redis-conf-using-the-environment-variable