168 lines
4.0 KiB
Lua
168 lines
4.0 KiB
Lua
--[[
|
|
|
|
LuCI LXC module
|
|
|
|
Copyright (C) 2014, Cisco Systems, Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Author: Petar Koretic <petar.koretic@sartura.hr>
|
|
|
|
]]--
|
|
|
|
module("luci.controller.lxc", package.seeall)
|
|
|
|
require "ubus"
|
|
local conn = ubus.connect()
|
|
if not conn then
|
|
error("Failed to connect to ubus")
|
|
end
|
|
|
|
|
|
function fork_exec(command)
|
|
local pid = nixio.fork()
|
|
if pid > 0 then
|
|
return
|
|
elseif pid == 0 then
|
|
-- change to root dir
|
|
nixio.chdir("/")
|
|
|
|
-- patch stdin, out, err to /dev/null
|
|
local null = nixio.open("/dev/null", "w+")
|
|
if null then
|
|
nixio.dup(null, nixio.stderr)
|
|
nixio.dup(null, nixio.stdout)
|
|
nixio.dup(null, nixio.stdin)
|
|
if null:fileno() > 2 then
|
|
null:close()
|
|
end
|
|
end
|
|
|
|
-- replace with target command
|
|
nixio.exec("/bin/sh", "-c", command)
|
|
end
|
|
end
|
|
|
|
function index()
|
|
page = node("admin", "services", "lxc")
|
|
page.target = cbi("lxc")
|
|
page.title = _("LXC Containers")
|
|
page.order = 70
|
|
|
|
page = entry({"admin", "services", "lxc_create"}, call("lxc_create"), nil)
|
|
page.leaf = true
|
|
|
|
page = entry({"admin", "services", "lxc_action"}, call("lxc_action"), nil)
|
|
page.leaf = true
|
|
|
|
page = entry({"admin", "services", "lxc_get_downloadable"}, call("lxc_get_downloadable"), nil)
|
|
page.leaf = true
|
|
|
|
page = entry({"admin", "services", "lxc_configuration_get"}, call("lxc_configuration_get"), nil)
|
|
page.leaf = true
|
|
|
|
page = entry({"admin", "services", "lxc_configuration_set"}, call("lxc_configuration_set"), nil)
|
|
page.leaf = true
|
|
|
|
end
|
|
|
|
function lxc_get_downloadable()
|
|
luci.http.prepare_content("application/json")
|
|
|
|
local f = io.popen('uname -m', 'r')
|
|
local target = f:read('*a')
|
|
f:close()
|
|
target = target:gsub("^%s*(.-)%s*$", "%1")
|
|
|
|
local templates = {}
|
|
|
|
local f = io.popen('lxc-create -n just_want_to_list_available_lxc_templates -t download -- --list', 'r')
|
|
|
|
for line in f:lines() do
|
|
local dist,version = line:match("^(%S+)%s+(%S+)%s+" .. target .. "%s+default%s+%S+$")
|
|
if dist~=nil and version~=nil then templates[#templates + 1] = dist .. ":" .. version end
|
|
end
|
|
|
|
f:close()
|
|
luci.http.write_json(templates)
|
|
end
|
|
|
|
function lxc_create(lxc_name, lxc_template)
|
|
luci.http.prepare_content("text/plain")
|
|
|
|
local uci = require("uci").cursor()
|
|
|
|
local url = uci:get("lxc", "lxc", "url")
|
|
|
|
if not pcall(dofile, "/etc/openwrt_release") then
|
|
return luci.http.write("1")
|
|
end
|
|
|
|
local f = io.popen('uname -m', 'r')
|
|
local target = f:read('*a')
|
|
f:close()
|
|
target = target:gsub("^%s*(.-)%s*$", "%1")
|
|
|
|
local lxc_dist = lxc_template:gsub("(.*):(.*)", '%1')
|
|
local lxc_release = lxc_template:gsub("(.*):(.*)", '%2')
|
|
|
|
local data = conn:call("lxc", "create", { name = lxc_name, template = "download", args = { "--server", url, "--no-validate", "--dist", lxc_dist, "--release", lxc_release, "--arch", target } } )
|
|
|
|
luci.http.write(data)
|
|
end
|
|
|
|
function lxc_action(lxc_action, lxc_name)
|
|
luci.http.prepare_content("application/json")
|
|
|
|
local data, ec = conn:call("lxc", lxc_action, lxc_name and { name = lxc_name} or {} )
|
|
|
|
luci.http.write_json(ec and {} or data)
|
|
end
|
|
|
|
function lxc_get_config_path()
|
|
local f = io.open("/etc/lxc/lxc.conf", "r")
|
|
local content = f:read("*all")
|
|
f:close()
|
|
local ret = content:match('^%s*lxc.lxcpath%s*=%s*([^%s]*)')
|
|
if ret then
|
|
return ret .. "/"
|
|
else
|
|
return "/srv/lxc/"
|
|
end
|
|
end
|
|
|
|
function lxc_configuration_get(lxc_name)
|
|
luci.http.prepare_content("text/plain")
|
|
|
|
local f = io.open(lxc_get_config_path() .. lxc_name .. "/config", "r")
|
|
local content = f:read("*all")
|
|
f:close()
|
|
|
|
luci.http.write(content)
|
|
end
|
|
|
|
function lxc_configuration_set(lxc_name)
|
|
luci.http.prepare_content("text/plain")
|
|
|
|
local lxc_configuration = luci.http.formvalue("lxc_configuration")
|
|
|
|
if lxc_configuration == nil then
|
|
return luci.http.write("1")
|
|
end
|
|
|
|
local f, err = io.open(lxc_get_config_path() .. lxc_name .. "/config","w+")
|
|
if not f then
|
|
return luci.http.write("2")
|
|
end
|
|
|
|
f:write(lxc_configuration)
|
|
f:close()
|
|
|
|
luci.http.write("0")
|
|
end
|
|
|