如何将docker exec添加到IBM bluemix容器中

Question

I have just started with IBM containers. Now, I want to to docker exec to the container but I found that this is not supported ( link ).

Basically, I had put my source code in the container and now want to install it and update some configurations, For ex: update the ip address provided.

I can create an image from the installed docker container and push that to bluemix but still I need to change some configurations.

Please suggest me the alternative ways to achieve this.

Answer 1

You can ssh to the IBM Container and update files as needed. To ssh to IBM Container you have to pass an ssh public key using the --ssh option. Follow the steps below to create the ssh public/private key pair and run the IBM container:

1) Create a private/public key pair

# ssh-keygen -t rsa -f cloud.key

This will create 2 files: cloud.key and cloud.key.pub

2) Run the IBM container passing the public key, the sample below runs the default ibmnode image (do a cat cloud.key.pub and paste as the ssh argument):

# ice run --name my-container --memory 512 --publish 8000 --ssh "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCrpMSm1U0YCvCfFZDOSqKDNZT0fd9TOWQh/jZPFWJu3BTrZuxDM0Mc5Cv6Lw0yYC5ZdqFsn4Rp4ovCkEY3JsnrE6NSsyrtxMvCGm1FDWYMJBnB4tDoWFmAULYKvdospozjk9Abvl2Hw3xu36j2c3W/x4iB/Xez0xdqNi8YN23gg8n45ZDCsDVZ4SE2ks8u81CoDcDhA3XmJF5Fpfwfnxi7OI9LNTkNJ26CnQb0/k80gYc1qUcGjgPasbWHPuPY4YJDAAr5U6faZUX8IqepLmk/icIQw+SFBQa4OS5+n4jJ3YpkM23RZdylY61t9ltU8GJI/d5tRsV7ZYeX+gE/RO53 xxxxx@xxx.yyy.com" registry.ng.bluemix.net/ibmnode:latest

3) Bind a public IP address to IBM container:

# ice ip bind <ip-address> my-container

4) Run ssh command to login to the IBM Container passing private key

# ssh -i cloud.key root@<ip-address>

Answer 2

Since docker run is supported, included with volumes, you could consider adding a data volume .

That way, you can modify a file from the host, and the container will see the modification through the mounted volume.