From 3e5d25eca6ea0597a9a60b029aa5db5f1882355b Mon Sep 17 00:00:00 2001 From: Michael Crosby Date: Wed, 30 Apr 2014 18:52:15 -0700 Subject: [PATCH] Remove container.json from readme No need to duplicate this information when we already have a container.json file in the root of libcontainer Docker-DCO-1.1-Signed-off-by: Michael Crosby (github: crosbymichael) --- libcontainer/README.md | 151 +---------------------------------------- 1 file changed, 1 insertion(+), 150 deletions(-) diff --git a/libcontainer/README.md b/libcontainer/README.md index 31031b2..8e89153 100644 --- a/libcontainer/README.md +++ b/libcontainer/README.md @@ -13,160 +13,11 @@ a `container.json` file is placed with the runtime configuration for how the pro should be contained and ran. Environment, networking, and different capabilities for the process are specified in this file. The configuration is used for each process executed inside the container. -Sample `container.json` file: -```json -{ - "mounts" : [ - { - "type" : "devtmpfs" - } - ], - "tty" : true, - "environment" : [ - "HOME=/", - "PATH=PATH=$PATH:/bin:/usr/bin:/sbin:/usr/sbin", - "container=docker", - "TERM=xterm-256color" - ], - "hostname" : "koye", - "cgroups" : { - "parent" : "docker", - "name" : "docker-koye" - }, - "capabilities_mask" : [ - { - "value" : 8, - "key" : "SETPCAP", - "enabled" : false - }, - { - "enabled" : false, - "value" : 16, - "key" : "SYS_MODULE" - }, - { - "value" : 17, - "key" : "SYS_RAWIO", - "enabled" : false - }, - { - "key" : "SYS_PACCT", - "value" : 20, - "enabled" : false - }, - { - "value" : 21, - "key" : "SYS_ADMIN", - "enabled" : false - }, - { - "value" : 23, - "key" : "SYS_NICE", - "enabled" : false - }, - { - "value" : 24, - "key" : "SYS_RESOURCE", - "enabled" : false - }, - { - "key" : "SYS_TIME", - "value" : 25, - "enabled" : false - }, - { - "enabled" : false, - "value" : 26, - "key" : "SYS_TTY_CONFIG" - }, - { - "key" : "AUDIT_WRITE", - "value" : 29, - "enabled" : false - }, - { - "value" : 30, - "key" : "AUDIT_CONTROL", - "enabled" : false - }, - { - "enabled" : false, - "key" : "MAC_OVERRIDE", - "value" : 32 - }, - { - "enabled" : false, - "key" : "MAC_ADMIN", - "value" : 33 - }, - { - "key" : "NET_ADMIN", - "value" : 12, - "enabled" : false - }, - { - "value" : 27, - "key" : "MKNOD", - "enabled" : true - } - ], - "networks" : [ - { - "mtu" : 1500, - "address" : "127.0.0.1/0", - "type" : "loopback", - "gateway" : "localhost" - }, - { - "mtu" : 1500, - "address" : "172.17.42.2/16", - "type" : "veth", - "context" : { - "bridge" : "docker0", - "prefix" : "veth" - }, - "gateway" : "172.17.42.1" - } - ], - "namespaces" : [ - { - "key" : "NEWNS", - "value" : 131072, - "enabled" : true, - "file" : "mnt" - }, - { - "key" : "NEWUTS", - "value" : 67108864, - "enabled" : true, - "file" : "uts" - }, - { - "enabled" : true, - "file" : "ipc", - "key" : "NEWIPC", - "value" : 134217728 - }, - { - "file" : "pid", - "enabled" : true, - "value" : 536870912, - "key" : "NEWPID" - }, - { - "enabled" : true, - "file" : "net", - "key" : "NEWNET", - "value" : 1073741824 - } - ] -} -``` +See the `container.json` file for what the configuration should look like. Using this configuration and the current directory holding the rootfs for a process, one can use libcontainer to exec the container. Running the life of the namespace, a `pid` file is written to the current directory with the pid of the namespaced process to the external world. A client can use this pid to wait, kill, or perform other operation with the container. If a user tries to run a new process inside an existing container with a live namespace, the namespace will be joined by the new process. - You may also specify an alternate root place where the `container.json` file is read and where the `pid` file will be saved. #### nsinit