opscli Shell Command Guide

1. Specify Target Hosts

Single Host

Use the -i flag to specify a single host IP.

-i 1.1.1.1

You can also specify a username and password with the --username and --password flags:

--username <your-username> --password <your-password>

Batch Hosts

To specify multiple hosts, you can use a file or comma-separated IP addresses.

From a File (hosts.txt)

-i hosts.txt

Example content of hosts.txt:

1.1.1.1
2.2.2.2

Comma-separated IPs

-i 1.1.1.1,2.2.2.2

All Nodes in a Cluster

-i ~/.kube/config --nodename all

By default, -i points to ~/.kube/config.

Specific Node in a Cluster

-i ~/.kube/config --nodename node1

Where node1 is the node name.

2. View Cluster Images

For Single Machine

/usr/local/bin/opscli task -f ~/.ops/tasks/list-podimage.yaml --namespace all

3. Cluster Bulk Operations

All Nodes

To run a command on all nodes:

opscli shell --content "uname -a" --nodename all

Specific Node

To run a command on a specific node:

opscli shell --content "uname -a" --nodename node1

Specify kubeconfig

To specify a custom kubeconfig, use the -i flag:

opscli shell -i ~/Documents/opscli/prod --content "uname -a" --nodename node1

4. Mount Host Paths to Container

The --mount flag allows you to mount host paths into the container. This is useful for accessing host files, directories, or socket files (like docker.sock) from within the container.

Single Mount

opscli shell --content "ls /data" --mount /opt/data:/data

Multiple Mounts

You can specify multiple mounts by using --mount multiple times:

opscli shell --content "ls /data /logs" \
    --mount /opt/data:/data \
    --mount /opt/logs:/logs

Mount Docker Socket

To mount the Docker socket and use Docker commands inside the container:

opscli shell --content "docker ps" \
    --mount /var/run/docker.sock:/var/run/docker.sock

Mount Format

The mount format is: hostPath:mountPath

hostPath: absolute path on the host (required)
mountPath: absolute path in the container (required)

Note: If you need to access the host root filesystem, you can mount it explicitly:

opscli shell --content "ls /host" --mount /:/host

Shell