1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#!/usr/bin/env escript
%%! -noshell -noinput
%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ft=erlang ts=4 sw=4 et
-define(TIMEOUT, 60000).
-define(INFO(Fmt,Args), io:format(Fmt,Args)).
%% TODO: This script currently does NOT support slim releases.
%% Necessary steps to upgrade a slim release are as follows:
%% 1. unpack relup archive manually
%% 2. copy releases directory and necessary libraries
%% 3. using release_hander:set_unpacked/2 .
%% For more details, see https://github.com/rebar/rebar/pull/52
%% and https://github.com/rebar/rebar/issues/202
main([NodeName, Cookie, ReleasePackage]) ->
TargetNode = start_distribution(NodeName, Cookie),
{ok, Vsn} = rpc:call(TargetNode, release_handler, unpack_release,
[ReleasePackage], ?TIMEOUT),
?INFO("Unpacked Release ~p~n", [Vsn]),
{ok, OtherVsn, Desc} = rpc:call(TargetNode, release_handler,
check_install_release, [Vsn], ?TIMEOUT),
{ok, OtherVsn, Desc} = rpc:call(TargetNode, release_handler,
install_release, [Vsn], ?TIMEOUT),
?INFO("Installed Release ~p~n", [Vsn]),
ok = rpc:call(TargetNode, release_handler, make_permanent, [Vsn], ?TIMEOUT),
?INFO("Made Release ~p Permanent~n", [Vsn]);
main(_) ->
init:stop(1).
start_distribution(NodeName, Cookie) ->
MyNode = make_script_node(NodeName),
{ok, _Pid} = net_kernel:start([MyNode, shortnames]),
erlang:set_cookie(node(), list_to_atom(Cookie)),
TargetNode = make_target_node(NodeName),
case {net_kernel:hidden_connect_node(TargetNode),
net_adm:ping(TargetNode)} of
{true, pong} ->
ok;
{_, pang} ->
io:format("Node ~p not responding to pings.\n", [TargetNode]),
init:stop(1)
end,
TargetNode.
make_target_node(Node) ->
[_, Host] = string:tokens(atom_to_list(node()), "@"),
list_to_atom(lists:concat([Node, "@", Host])).
make_script_node(Node) ->
list_to_atom(lists:concat([Node, "_upgrader_", os:getpid()])).
|
