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myapp

An OTP application for make simple erlang release with:

  • systools
  • reltool
  • relx
  • rebar + reltool
  • rebar3 + relx

Build

$ make compile3

Run

$ make run3
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Release with systools

Generate release and make package file:

$ make compile3
$ make run3
1> systools:make_script("release/myapp", [local]).
ok
2> systools:make_tar("release/myapp", [{erts, "/usr/local/lib/erlang/"}]).
ok

Check generated release:

$ erl -boot release/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Unpack release on target system and run:

$ mkdir -p /tmp/myapp
$ rm -rf /tmp/myapp/*
$ cp release/myapp.tar.gz /tmp/myapp
$ cd /tmp/myapp
$ tar -xzvf myapp.tar.gz
$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/start
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Release with reltool

Generate release and make package file:

$ make compile3
$ make run3
1> {ok, Conf} = file:consult("reltool/reltool.config").
...
2> {ok, Spec} = reltool:get_target_spec(Conf).
...
3> reltool:eval_target_spec(Spec, code:root_dir(), "reltool/myapp").
ok
$ cd reltool/myapp
$ tar -czvf myapp.tar.gz *

Check generated release:

$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Unpack release on target system and run:

$ mkdir -p /tmp/myapp
$ rm -rf /tmp/myapp/*
$ cp myapp.tar.gz /tmp/myapp
$ cd /tmp/myapp
$ tar -xzvf myapp.tar.gz
$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Release with relx

Generate release and make package file:

$ make compile3
$ ./relx
$ cd _rel/myapp
$ tar -czvf myapp.tar.gz *

Check generated release:

$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Unpack release on target system and run:

$ mkdir -p /tmp/myapp
$ rm -rf /tmp/myapp/*
$ cp myapp.tar.gz /tmp/myapp
$ cd /tmp/myapp
$ tar -xzvf myapp.tar.gz
$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Release with rebar2 and reltool

Generate new reltool skel:

#$ mkdir rel
#$ cd rel
#$ ../rebar create-node nodeid=myapp
#$ cp ../config/* ./files
#$ cd ..

Generate release and make package file:

$ make compile2
$ make rel2
$ cd rel/myapp
$ tar -czvf myapp.tar.gz *

Check generated release:

$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> application:ensure_all_started(myapp).
...
2> myapp:hello().
... Hello No:0
ok
3> myapp:hello().
... Hello No:1
ok

Unpack release on target system and run:

$ mkdir -p /tmp/myapp
$ rm -rf /tmp/myapp/*
$ cp myapp.tar.gz /tmp/myapp
$ cd /tmp/myapp
$ tar -xzvf myapp.tar.gz
$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> application:ensure_all_started(myapp).
...
2> myapp:hello().
... Hello No:0
ok
3> myapp:hello().
... Hello No:1
ok

Release with rebar3 and relx

Generate release and make package file:

$ make compile3
$ make rel3
$ cd _build/default/rel/myapp
$ tar -czvf myapp.tar.gz *

Check generated release:

$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok

Unpack release on target system and run:

$ mkdir -p /tmp/myapp
$ rm -rf /tmp/myapp/*
$ cp myapp.tar.gz /tmp/myapp
$ cd /tmp/myapp
$ tar -xzvf myapp.tar.gz
$ ./erts-7.0/bin/erl -boot ./releases/1.0.0/myapp
1> myapp:hello().
... Hello No:0
ok
2> myapp:hello().
... Hello No:1
ok