8467d0ea3f
Number of suggested rewrites: * use lua ubus bindings instead of os.execute * combine multiple actions to use same handler 'lxc_action' and pass actions as arguments to consolidate code * read openwrt version from lua directly * start using String.prototype.format for string formatting Also, drop 'rename' and 'clone' until they are fully functional on all platforms. Thanks Jo-Philipp for suggestions on how to improve the code. Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
125 lines
2.8 KiB
Lua
125 lines
2.8 KiB
Lua
--[[
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LuCI LXC module
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Copyright (C) 2014, Cisco Systems, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Author: Petar Koretic <petar.koretic@sartura.hr>
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]]--
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module("luci.controller.lxc", package.seeall)
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require "ubus"
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local conn = ubus.connect()
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if not conn then
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error("Failed to connect to ubus")
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end
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function fork_exec(command)
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local pid = nixio.fork()
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if pid > 0 then
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return
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elseif pid == 0 then
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-- change to root dir
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nixio.chdir("/")
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-- patch stdin, out, err to /dev/null
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local null = nixio.open("/dev/null", "w+")
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if null then
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nixio.dup(null, nixio.stderr)
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nixio.dup(null, nixio.stdout)
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nixio.dup(null, nixio.stdin)
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if null:fileno() > 2 then
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null:close()
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end
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end
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-- replace with target command
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nixio.exec("/bin/sh", "-c", command)
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end
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end
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function index()
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page = node("admin", "services", "lxc")
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page.target = cbi("lxc")
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page.title = _("LXC Containers")
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page.order = 70
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page = entry({"admin", "services", "lxc_create"}, call("lxc_create"), nil)
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page.leaf = true
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page = entry({"admin", "services", "lxc_action"}, call("lxc_action"), nil)
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page.leaf = true
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page = entry({"admin", "services", "lxc_configuration_get"}, call("lxc_configuration_get"), nil)
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page.leaf = true
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page = entry({"admin", "services", "lxc_configuration_set"}, call("lxc_configuration_set"), nil)
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page.leaf = true
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end
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function lxc_create(lxc_name, lxc_template)
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luci.http.prepare_content("text/plain")
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local uci = require("uci").cursor()
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local url = uci:get("lxc", "lxc", "url")
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if not pcall(dofile, "/etc/openwrt_release") then
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return luci.http.write("1")
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end
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local target = _G.DISTRIB_TARGET:match('([^/]+)')
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local res = os.execute("lxc-create -t download -n " .. lxc_name .. " -- --server=" .. url .. " --no-validate --dist " .. lxc_template .. " --release bb --arch " .. target)
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luci.http.write(tostring(res))
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end
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function lxc_action(lxc_action, lxc_name)
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luci.http.prepare_content("application/json")
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local data, ec = conn:call("lxc", lxc_action, lxc_name and { name = lxc_name} or {} )
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luci.http.write_json(ec and {} or data)
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end
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function lxc_configuration_get(lxc_name)
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luci.http.prepare_content("text/plain")
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local f = io.open("/lxc/" .. lxc_name .. "/config", "r")
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local content = f:read("*all")
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f:close()
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luci.http.write(content)
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end
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function lxc_configuration_set(lxc_name)
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luci.http.prepare_content("text/plain")
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local lxc_configuration = luci.http.formvalue("lxc_configuration")
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if lxc_configuration == nil then
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return luci.http.write("1")
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end
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local f, err = io.open("/lxc/" .. lxc_name .. "/config","w+")
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if not f then
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return luci.http.write("2")
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end
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f:write(lxc_configuration)
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f:close()
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luci.http.write("0")
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end
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