How to add env param?

Rancher 1.x
1

Before rancher, I create docker container with the script:
docker run --shm-size=1G --cap-add NET_ADMIN --privileged=true -v /home/oj/data:/home/oj/data -v /home/soft:/home/soft -v /home/oj/log:/home/oj/log -v /home/oj/etc:/home/oj/etc -p 2222:22 --restart=always --name=oj2 –env hostip=`ifconfig eth0 | awk ‘/inet addr:/{print $2}’ | awk -F: ‘{print $2}’` -it --entrypoint=/home/soft/ojdaemon docker.acmcoder.com/oj:latest /home/oj 1

In the container, I want to use env param hostip, and the value of it is the host eth0’s ip address.

When I create a service in rancher, I add the env param like this: hostip=`ifconfig eth0 | awk ‘/inet addr:/{print $2}’ | awk -F: ‘{print $2}’`
In the container, when I echo $hostip, It displays `ifconfig eth0 | awk ‘/inet addr:/{print $2}’ | awk -F: ‘{print $2}’`, not the host eth0’s ip address.

How to pass a shell script result to the env value?

2

you can do that in entrypoint script. Evaluate your ip address and set it as an environment variable in the script.

3

what OS are you using?

4

You can get the IP of the host you’re running on from metadata, but you cannot do something like what you’re showing. That only works because you’re in a shell on the target host and letting it interpret that. The Rancher (or Docker Remote) API does not shell-interpret values.

5

my os version is Ubuntu 14.04

6

I want to get the host computer’s ip address, but not the container’s ip address. How to get the host machine’s ip address in entrypoint script.

7

For example, I have 100 machines in the cloud, and I can get the host list of these machines as follows:
Internet IP Address, Intranet IP Address, Instance ID/Name
47.93.81.28, 10.30.136.49, oj1
47.93.81.29, 10.30.136.50, oj2
…

When I run one container on each machines, the daemon process on each container tell the db server his unique id. So I can monitor each daemon process’s running data. But how to know who is the host of daemon process from a unique id? When daemon process use ip address as his unique id, it just like this: 10.42.88.53, 10.42.88.54. It’s the container’s ip address, but not the host’s ip address, so I can’t map to the host list provided by cloud platform.

Can you give me a solution? Thanks.