+++ /dev/null
---[[
-
-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
-
+++ /dev/null
-<%#
-
-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>
-
--%>
-
-<fieldset class="cbi-section">
- <legend><%:Available Containers%></legend>
- <div class="cbi-section-node">
- <table id="t_lxc_list" class="cbi-section-table">
- <tr class="cbi-section-table-titles">
- <th class="cbi-section-table-cell"><%:Name%></th>
- <th class="cbi-section-table-cell"><%:Status%></th>
- <th class="cbi-section-table-cell"><%:Actions%></th>
- </tr>
- </table>
- </div>
-</fieldset>
-
-<fieldset class="cbi-section">
- <span id="lxc-list-output"></span>
-</fieldset>
-
-<hr/>
-<fieldset class="cbi-section">
- <legend><%:Create New Container%></legend>
- <div class="cbi-section-node">
- <table id="t_lxc_create" class="cbi-section-table">
- <tr class="cbi-section-table-titles">
- <th class="cbi-section-table-cell"><%:Name%></th>
- <th class="cbi-section-table-cell"><%:Template%></th>
- <th class="cbi-section-table-cell"><%:Actions%></th>
- </tr>
- <tr id="tr_holder">
- <td>
- <input type="text" id="tx_name" placeholder="<%:Enter new name%>" value='' />
- </td>
- <td>
- <select id="s_template" class="cbi-input-select cbi-button">
- </select>
- </td>
- <td>
- <input type="button" id="bt_create" value="<%:Create%>" onclick="lxc_create(tr_holder)" class="cbi-button cbi-button-add" />
- <span id="lxc-add-loader" style="display:inline-block; width:16px; height:16px; margin:0 5px"></span>
- </td>
- </tr>
- </table>
- </div>
-</fieldset>
-
-<fieldset class="cbi-section">
- <span id="lxc-add-output"></span>
-</fieldset>
-
-<hr/>
-
-<script type="text/javascript" src="<%=resource%>/cbi.js"></script>
-<script type="text/javascript">//<![CDATA[
-
- window.img = { "red" : "<%=resource%>/cbi/red.gif", "green" : "<%=resource%>/cbi/green.gif", "purple" : "<%=resource%>/cbi/purple.gif" }
- window.states = { "STOPPED" : "red", "RUNNING" : "green", "FROZEN" : "purple"}
-
- var t_lxc_list = document.getElementById('t_lxc_list');
- var loader_html = '<img src="<%=resource%>/icons/loading.gif" alt="<%:Loading%>" width="16" height="16" style="vertical-align:middle" /> ';
- var timeout_msg = 0
- var output_list = document.getElementById("lxc-list-output")
- var output_add = document.getElementById("lxc-add-output")
- var loader_add = document.getElementById("lxc-add-loader")
-
- function lxc_create(tr)
- {
- var lxc_name = tr.querySelector("#tx_name").value.trim()
- var lxc_template = tr.querySelector("#s_template").value
- var bt_create = tr.querySelector("#bt_create")
-
- if (t_lxc_list.querySelector("[data-id='" + lxc_name + "']") != null)
- return info_message(output_add, "Container with that name already exists!", 4000)
-
- bt_create.disabled = true
- output_add.innerHTML = ''
-
- if (!lxc_name || !lxc_name.length)
- {
- bt_create.disabled = false
- return info_message(output_add, "Name cannot be empty!", 4000)
- }
-
- loading(loader_add)
-
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_create/' + '%h/%h'.format(lxc_name, lxc_template) , null,
- function(x)
- {
- bt_create.disabled = false
- loading(loader_add, 0)
-
- if (!x)
- info_message(output_add, "Container creation failed!")
- })
- }
-
- function lxc_create_template(lxc_name, lxc_state)
- {
- var info_row = t_lxc_list.querySelector("#empty")
- if (info_row)
- t_lxc_list.deleteRow(1)
-
- var actions = ''
- actions += '<input type="button" onclick="action_handler(this)" data-action="start" value="<%:Start%>" class="cbi-button cbi-button-apply" />'
- actions+= '<input type="button" onclick="action_handler(this)" data-action="stop" value="<%:Stop%>" class="cbi-button cbi-button-reset" />'
- actions+= '<input type="button" onclick="action_handler(this)" data-action="destroy" value="<%:Delete%>" class="cbi-button cbi-button-remove" />'
- actions+= ' <select class="cbi-input-select cbi-button" onchange="action_more_handler(this)">\
- <option selected disabled>more</option>\
- <option>configure</option>\
- <option>freeze</option>\
- <option>unfreeze</option>\
- <option>reboot</option>\
- </select>'
- actions+= '<span data-loader style="display:inline-block; width:16px; height:16px; margin:0 5px"></span>'
-
- var row = t_lxc_list.insertRow(-1)
- var cell = row.insertCell(-1)
- cell.innerHTML = '%q%h%q'.format("<strong>", lxc_name, "</strong>")
- cell.width = "30%"
- cell.setAttribute("data-id", lxc_name)
-
- cell = row.insertCell(-1)
- cell.width = "20%"
- cell.innerHTML = "<img src='"+window.img[lxc_state]+"'/>"
-
- cell = row.insertCell(-1)
- cell.width = "50%"
- cell.innerHTML = actions
- }
-
- function action_handler(self)
- {
- var action = self.getAttribute("data-action");
-
- var bt_action = self
- var lxc_name = self.parentNode.parentNode.children[0].getAttribute('data-id')
- var status_img = self.parentNode.parentNode.querySelector('img')
- var loader = self.parentNode.querySelector('[data-loader]')
-
- bt_action.disabled = true
-
- if (action == "stop")
- {
- loading(loader)
-
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/' + '%h/%h'.format(action, lxc_name), null,
- function(x, ec)
- {
- loading(loader, 0)
- bt_action.disabled = false
-
- if (!x || ec)
- return info_message(output_list,"Action failed!")
-
- set_status(status_img, "red")
-
- });
- }
-
- else if (action == "start")
- {
- loading(loader)
-
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/' + '%h/%h'.format(action, lxc_name), null,
- function(x, data)
- {
- loading(loader, 0)
- bt_action.disabled = false
-
- //FIXME: uncomment after fixing 'lxc-start'
- if (!x /*|| ec */)
- return info_message(output_list,"Action failed!")
-
- //FIXME: uncomment after fixing 'lxc-start'
- //set_status(status_img, "green")
- });
- }
-
- else if (action == "destroy")
- {
- if (!confirm("This will completely remove LXC container from the disk. Are you sure? (container will be stopped if running)"))
- return
-
- loading(loader)
-
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/' + '%h/%h'.format(action, lxc_name), null,
- function(x, ec)
- {
- loading(loader, 0)
- bt_action.disabled = false
-
- if (!x || ec)
- return info_message(output_list,"Action failed!")
-
- var row = self.parentNode.parentNode
- row.parentNode.removeChild(row)
-
- });
- }
- }
-
- function lxc_configure_handler(self)
- {
- var td = self.parentNode
- var textarea = td.querySelector('[data-id]')
- var lxc_name = textarea.getAttribute('data-id')
- var lxc_configuration = textarea.value
-
- new XHR().post('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_configuration_set/' + lxc_name, "lxc_configuration=" + encodeURIComponent(lxc_configuration) ,
- function(x)
- {
- if (!x || x.responseText != "0")
- return info_message(output_list,"Action failed!")
-
- info_message(output_list,"LXC configuration updated")
- var row = td.parentNode
- row.parentNode.removeChild(row)
- })
- }
-
- function lxc_rename_template(lxc_name)
- {
- var h = '\
- <input data-id="'+ lxc_name + '" type="text" placeholder="Enter new name" /> \
- <input data-id="bt_confirm" onclick="lxc_rename_handler(this)" type="button" class="cbi-button" value="Confirm" />'
-
- return h
- }
-
- function lxc_configure_template(lxc_name, lxc_configuration)
- {
- var h = '\
- <textarea data-id="'+ lxc_name + '" rows="20" style="width:100%">'+ lxc_configuration +'</textarea> \
- <input data-id="bt_confirm" onclick="lxc_configure_handler(this)" type="button" class="cbi-button" value="Confirm" />'
-
- return h
- }
-
- function action_more_handler(self)
- {
- var lxc_name = self.parentNode.parentNode.querySelector('[data-id]').getAttribute('data-id')
- var loader = self.parentNode.parentNode.querySelector('[data-loader]')
-
- var option = self.options[self.selectedIndex].text
-
- self.value = "more"
-
- switch (option)
- {
- case "configure":
- var tr = document.createElement('tr')
- var row = self.parentNode.parentNode
- var next_row = row.nextSibling
- if (next_row && next_row.getAttribute('data-action') !== null)
- row.parentNode.removeChild(next_row)
-
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_configuration_get/' + lxc_name, null,
- function(x)
- {
- tr.innerHTML="<td colspan='" + row.cells.length + "'>" + lxc_configure_template(lxc_name, x.responseText) + "</td>"
- tr.setAttribute('data-action','')
- row.parentNode.insertBefore(tr, row.nextSibling)
- })
-
- break
-
- case "freeze":
- var tr = self.parentNode.parentNode
- var img = tr.querySelector('img')
- if(img.getAttribute('src') != window.img["green"])
- return info_message(output_list,"Container is not running!")
-
- loading(loader)
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/' + '%h/%h'.format(option, lxc_name), null,
- function(x, ec)
- {
- loading(loader, 0)
- if (!x || ec)
- return info_message(output_list,"Action failed!")
-
- set_status(img, "purple")
- })
-
- break
-
- case "unfreeze":
- var tr = self.parentNode.parentNode
- var img = tr.querySelector('img')
-
- if(img.getAttribute('src') != window.img["purple"])
- return info_message(output_list,"Container is not frozen!")
-
- loading(loader)
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/' + '%h/%h'.format(option, lxc_name), null,
- function(x, ec)
- {
- loading(loader, 0)
- if (!x || ec)
- return info_message(output_list,"Action failed!")
-
- set_status(img, "green")
- })
-
- break
-
- case "reboot":
- var tr = self.parentNode.parentNode
- var img = tr.querySelector('img')
- if(img.getAttribute('src') != window.img["green"])
- return info_message(output_list,"Container is not running!")
-
- if (!confirm("Are you sure?"))
- return
-
- loading(loader)
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/' + '%h/%h'.format(option, lxc_name), null,
- function(x, ec)
- {
- loading(loader, 0)
- if (!x || ec)
- return info_message(output_list,"Action failed!")
-
- info_message(output_list,"LXC rebooted")
- })
- break
- }
-
- }
-
- function set_empty(t_lxc_list)
- {
- if (document.getElementById('empty') !== null)
- return
-
- var row_count = t_lxc_list.rows.length;
- while(--row_count) t_lxc_list.deleteRow(row_count);
-
- var row = t_lxc_list.insertRow(-1);
- row.id = 'empty'
- var cell = row.insertCell(0);
- cell.colSpan = 4;
- cell.innerHTML = '<em><br />There are no containers available yet.</em>';
- }
-
- function lxc_list_update()
- {
- XHR.poll(4, '<%=luci.dispatcher.build_url("admin", "services")%>/lxc_action/list', null,
- function(x, data)
- {
- if (!x) return;
-
- var lxc_count = Object.keys(data).length
- if (!data || !lxc_count)
- return set_empty(t_lxc_list)
-
- if (document.getElementById('empty') !== null)
- t_lxc_list.deleteRow(1);
-
- var lxcs = t_lxc_list.querySelectorAll('td[data-id]')
- var lxc_name_table = {}
- for (var i = 0, len = lxcs.length; i < len; i++)
- {
- var lxc_name = lxcs[i].getAttribute('data-id')
- if (!(lxc_name in data))
- {
- var row = t_lxc_list.querySelector("[data-id='" + lxc_name + "']").parentNode
- row.parentNode.removeChild(row)
- continue
- }
-
- lxc_name_table[lxc_name] = lxcs[i].parentNode.querySelector('img')
- }
-
- for(var key in data)
- {
- var lxc_name = key
- var state = window.states[data[key]]
-
- if (!(lxc_name in lxc_name_table))
- lxc_create_template(lxc_name, state)
-
- else if (state != get_status(lxc_name_table[lxc_name]))
- set_status(lxc_name_table[lxc_name], state)
- }
-
- })
- }
-
- function loading(elem, state)
- {
- state = (typeof state === 'undefined') ? 1 : state
-
- if (state === 1)
- elem.innerHTML = loader_html
- else
- setTimeout(function() { elem.innerHTML = ''}, 1000)
- }
-
- function set_status(elem, state)
- {
- state = (typeof state === 'undefined') ? 1 : state
-
- setTimeout(function() { elem.setAttribute('src', window.img[state])}, 300)
- }
-
- function get_status(elem)
- {
- var src = elem.getAttribute('src')
-
- for (var i in img)
- {
- if (img[i] == src)
- return i
- }
- }
-
- function info_message(output, msg, timeout)
- {
- timeout = timeout || 3000
- output.innerHTML = msg
- clearTimeout(timeout_msg)
- timeout_msg = setTimeout(function(){ output.innerHTML=""}, timeout);
- }
-
- lxc_list_update()
-
- new XHR().get('<%=luci.dispatcher.build_url("admin", "services")%>/lxc_get_downloadable', null,
- function(x, data)
- {
- if (!x) return;
-
- var lxc_count = Object.keys(data).length
- if (!data || !lxc_count) return;
- var select = document.getElementById("s_template");
- for(var key in data)
- {
- var option = document.createElement('option');
- option.value = data[key];
- option.text = data[key].replace(/[_:]/g, ' ');
- select.add(option, -1);
- }
- })
-
-//]]></script>
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