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Pass the container's command via args Remove execin function and just look for an existing nspid file to join the namespace Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael) Upstream-commit: d84feb8fe5e40838c81321249189f1f0a02825bb Component: engine
libcontainer - reference implementation for containers
playground
Use the cli package to test out functionality
First setup a container configuration. You will need a root fs, better go the path to a stopped docker container and use that.
{
"id": "koye",
"namespace_pid": 12265,
"command": {
"args": [
"/bin/bash"
],
"environment": [
"HOME=/",
"PATH=PATH=$PATH:/bin:/usr/bin:/sbin:/usr/sbin",
"container=docker",
"TERM=xterm"
]
},
"rootfs": "/root/development/gocode/src/github.com/docker/libcontainer/namespaces/ubuntu",
"network": null,
"user": "",
"working_dir": "",
"namespaces": [
"NEWNET",
"NEWIPC",
"NEWNS",
"NEWPID",
"NEWUTS"
],
"capabilities": [
"SETPCAP",
"SYS_MODULE",
"SYS_RAWIO",
"SYS_PACCT",
"SYS_ADMIN",
"SYS_NICE",
"SYS_RESOURCE",
"SYS_TIME",
"SYS_TTY_CONFIG",
"MKNOD",
"AUDIT_WRITE",
"AUDIT_CONTROL",
"MAC_OVERRIDE",
"MAC_ADMIN"
]
}
After you have a json file and a rootfs path to use just run:
./cli exec container.json
If you want to attach to an existing namespace just use the same json
file with the container still running and do:
./cli execin container.json