add extended start script

1 files changed, 477 insertions, 4 deletions

diff --git a/src/rcl_prv_assembler.erl b/src/rcl_prv_assembler.erl
index 1559c2d..1709b3b 100644
--- a/src/rcl_prv_assembler.erl
+++ b/src/rcl_prv_assembler.erl
@@ -218,9 +218,14 @@ write_bin_file(State, Release, OutputDir, RelDir) ->
     VsnRel = filename:join(BinDir, RelName ++ "-" ++ RelVsn),
     BareRel = filename:join(BinDir, RelName),
     ErlOpts = rcl_state:get(State, erl_opts, ""),
-    StartFile = bin_file_contents(RelName, RelVsn,
-                                  rcl_release:erts(Release),
-                                  ErlOpts),
+    StartFile = case rcl_state:get(State, extended_start_script, false) of
+                    false ->
+                        bin_file_contents(RelName, RelVsn,
+                                          rcl_release:erts(Release),
+                                          ErlOpts);
+                    true ->
+                        extended_bin_file_contents(RelName, RelVsn, rcl_release:erts(Release), ErlOpts)
+                end,
     %% We generate the start script by default, unless the user
     %% tells us not too
     case rcl_state:get(State, generate_start_script, true) of
@@ -232,6 +237,7 @@ write_bin_file(State, Release, OutputDir, RelDir) ->
             ok = file:write_file(BareRel, StartFile),
             ok = file:change_mode(BareRel, 8#777)
     end,
+    ok = file:write_file(filename:join(RelDir, "vm.args"), vm_args_file(RelName)),
     copy_or_generate_sys_config_file(State, Release, OutputDir, RelDir).
 
 %% @doc copy config/sys.config or generate one to releases/VSN/sys.config
@@ -289,7 +295,11 @@ include_erts(State, Release, OutputDir, RelDir) ->
                     case rcl_state:get(State, extended_start_script, false) of
                         true ->
                             ok = ec_file:copy(filename:join([Prefix, "bin", "start_clean.boot"]),
-                                              filename:join([OutputDir, "bin", "start_clean.boot"]));
+                                              filename:join([OutputDir, "bin", "start_clean.boot"])),
+                            NodeToolFile = nodetool_contents(),
+                            NodeTool = filename:join([LocalErts, "bin", "nodetool"]),
+                            ok = file:write_file(NodeTool, NodeToolFile),
+                            ok = file:change_mode(NodeTool, 8#777);
                         false ->
                             ok
                     end,
@@ -414,3 +424,466 @@ export LD_LIBRARY_PATH=$ERTS_DIR/lib
 cd $ROOTDIR
 
 $BINDIR/erlexec $ERL_OPTS $SYS_CONFIG -boot $REL_DIR/$REL_NAME $@">>].
+
+extended_bin_file_contents(RelName, RelVsn, ErtsVsn, ErlOpts) ->
+    [<<"#!/bin/sh
+
+set -e
+
+SCRIPT_DIR=`dirname $0`
+RELEASE_ROOT_DIR=`cd $SCRIPT_DIR/.. && pwd`
+REL_NAME=">>, RelName, <<"
+REL_VSN=">>, RelVsn, <<"
+ERTS_VSN=">>, ErtsVsn, <<"
+REL_DIR=$RELEASE_ROOT_DIR/releases/$REL_NAME-$REL_VSN
+ERL_OPTS=">>, ErlOpts, <<"
+PIPE_DIR=/tmp/$REL_DIR/
+
+find_erts_dir() {
+    local erts_dir=$RELEASE_ROOT_DIR/erts-$ERTS_VSN
+    if [ -d \"$erts_dir\" ]; then
+        ERTS_DIR=$erts_dir;
+        ROOTDIR=$RELEASE_ROOT_DIR
+    else
+        local erl=`which erl`
+        local erl_root=`$erl -noshell -eval \"io:format(\\\"~s\\\", [code:root_dir()]).\" -s init stop`
+        ERTS_DIR=$erl_root/erts-$ERTS_VSN
+        ROOTDIR=$erl_root
+    fi
+
+}
+
+find_sys_config() {
+    local possible_sys=$REL_DIR/sys.config
+    if [ -f \"$possible_sys\" ]; then
+        SYS_CONFIG=\"-config $possible_sys\"
+    fi
+}
+
+# Use $CWD/vm.args if exists, otherwise releases/APP_VSN/vm.args, or else etc/vm.args
+if [ -e \"$CALLER_DIR/vm.args\" ]; then
+    VMARGS_PATH=$CALLER_DIR/vm.args
+    USE_DIR=$CALLER_DIR
+else
+    USE_DIR=$REL_DIR
+    if [ -e \"$REL_DIR/vm.args\" ]; then
+        VMARGS_PATH=\"$REL_DIR/vm.args\"
+    else
+        VMARGS_PATH=\"$REL_DIR/vm.args\"
+    fi
+fi
+
+RUNNER_LOG_DIR=$USE_DIR/log
+# Make sure log directory exists
+mkdir -p $RUNNER_LOG_DIR
+
+# Use releases/VSN/sys.config if it exists otherwise use etc/app.config
+if [ -e \"$USE_DIR/sys.config\" ]; then
+    CONFIG_PATH=\"$USE_DIR/sys.config\"
+else
+    if [ -e \"$REL_DIR/sys.config\" ]; then
+        CONFIG_PATH=\"$REL_DIR/sys.config\"
+    else
+        CONFIG_PATH=\"$REL_DIR/app.config\"
+    fi
+fi
+
+# Extract the target node name from node.args
+NAME_ARG=`egrep '^-s?name' $VMARGS_PATH`
+if [ -z \"$NAME_ARG\" ]; then
+    echo \"vm.args needs to have either -name or -sname parameter.\"
+    exit 1
+fi
+
+# Extract the name type and name from the NAME_ARG for REMSH
+REMSH_TYPE=`echo $NAME_ARG | awk '{print $1}'`
+REMSH_NAME=`echo $NAME_ARG | awk '{print $2}'`
+
+# Note the `date +%s`, used to allow multiple remsh to the same node transparently
+REMSH_NAME_ARG=\"$REMSH_TYPE remsh`date +%s`@`echo $REMSH_NAME | awk -F@ '{print $2}'`\"
+REMSH_REMSH_ARG=\"-remsh $REMSH_NAME\"
+
+# Extract the target cookie
+COOKIE_ARG=`grep '^-setcookie' $VMARGS_PATH`
+if [ -z \"$COOKIE_ARG\" ]; then
+    echo \"vm.args needs to have a -setcookie parameter.\"
+    exit 1
+fi
+
+# Setup remote shell command to control node
+REMSH=\"$ERTS_PATH/erl $REMSH_NAME_ARG $REMSH_REMSH_ARG $COOKIE_ARG\"
+
+find_erts_dir
+find_sys_config
+export ROOTDIR=$RELEASE_ROOT_DIR
+export BINDIR=$ERTS_DIR/bin
+export EMU=beam
+export PROGNAME=erl
+export LD_LIBRARY_PATH=$ERTS_DIR/lib
+
+cd $ROOTDIR
+
+# Setup command to control the node
+NODETOOL=\"$ERTS_DIR/bin/escript $ERTS_DIR/bin/nodetool $NAME_ARG $COOKIE_ARG\"
+
+# Check the first argument for instructions
+case \"$1\" in
+    start|start_boot)
+
+        # Make sure there is not already a node running
+        #RES=`$NODETOOL ping`
+        #if [ \"$RES\" = \"pong\" ]; then
+        #    echo \"Node is already running!\"
+        #    exit 1
+        #fi
+        case \"$1\" in
+            start)
+                shift
+                START_OPTION=\"console\"
+                HEART_OPTION=\"start\"
+                ;;
+            start_boot)
+                shift
+                START_OPTION=\"console_boot\"
+                HEART_OPTION=\"start_boot\"
+                ;;
+        esac
+        RUN_PARAM=$(printf \"'%s' \" \"$@\")
+        HEART_COMMAND=\"$SCRIPT_DIR/bin/$REL_NAME $HEART_OPTION $RUN_PARAM\"
+        export HEART_COMMAND
+        mkdir -p $PIPE_DIR
+        $ERTS_DIR/bin/run_erl -daemon $PIPE_DIR $RUNNER_LOG_DIR \"exec $RELEASE_ROOT_DIR/bin/$REL_NAME $START_OPTION $RUN_PARAM\" 2>&1
+        ;;
+
+    stop)
+        # Wait for the node to completely stop...
+        case `uname -s` in
+            Linux|Darwin|FreeBSD|DragonFly|NetBSD|OpenBSD)
+                # PID COMMAND
+                PID=`ps ax -o pid= -o command=|
+                    grep \"$SCRIPT_DIR/.*/[b]eam\"|awk '{print $1}'`
+                ;;
+            SunOS)
+                # PID COMMAND
+                PID=`ps -ef -o pid= -o args=|
+                    grep \"$SCRIPT_DIR/.*/[b]eam\"|awk '{print $1}'`
+                ;;
+            CYGWIN*)
+                # UID PID PPID TTY STIME COMMAND
+                PID=`ps -efW|grep \"$SCRIPT_DIR/.*/[b]eam\"|awk '{print $2}'`
+                ;;
+        esac
+        $NODETOOL stop
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            exit $ES
+        fi
+        while `kill -0 $PID 2>/dev/null`;
+        do
+            sleep 1
+        done
+        ;;
+
+    restart)
+        ## Restart the VM without exiting the process
+        $NODETOOL restart
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            exit $ES
+        fi
+        ;;
+
+    reboot)
+        ## Restart the VM completely (uses heart to restart it)
+        $NODETOOL reboot
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            exit $ES
+        fi
+        ;;
+
+    ping)
+        ## See if the VM is alive
+        $NODETOOL ping
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            exit $ES
+        fi
+        ;;
+
+    attach)
+        # Make sure a node IS running
+        RES=`$NODETOOL ping`
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            echo \"Node is not running!\"
+            exit $ES
+        fi
+
+        shift
+        exec $ERTS_DIR/bin/to_erl $PIPE_DIR
+        ;;
+
+    remote_console)
+        # Make sure a node IS running
+        RES=`$NODETOOL ping`
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            echo \"Node is not running!\"
+            exit $ES
+        fi
+
+        shift
+        exec $REMSH
+        ;;
+
+    upgrade)
+        if [ -z \"$2\" ]; then
+            echo \"Missing upgrade package argument\"
+            echo \"Usage: $REL_NAME upgrade {package base name}\"
+            echo \"NOTE {package base name} MUST NOT include the .tar.gz suffix\"
+            exit 1
+        fi
+
+        # Make sure a node IS running
+        RES=`$NODETOOL ping`
+        ES=$?
+        if [ \"$ES\" -ne 0 ]; then
+            echo \"Node is not running!\"
+            exit $ES
+        fi
+
+        node_name=`echo $NAME_ARG | awk '{print $2}'`
+        erlang_cookie=`echo $COOKIE_ARG | awk '{print $2}'`
+
+        $ERTS_DIR/bin/escript $SCRIPT_DIR/bin/install_upgrade.escript $node_name $erlang_cookie $2
+        ;;
+
+    console|console_clean|console_boot)
+        # .boot file typically just $REL_NAME (ie, the app name)
+        # however, for debugging, sometimes start_clean.boot is useful.
+        # For e.g. 'setup', one may even want to name another boot script.
+        case \"$1\" in
+            console)        BOOTFILE=$REL_NAME ;;
+            console_clean)  BOOTFILE=start_clean ;;
+            console_boot)
+                shift
+                BOOTFILE=\"$1\"
+                shift
+                ;;
+        esac
+        # Setup beam-required vars
+        ROOTDIR=$RELEASE_ROOT_DIR
+        BINDIR=$RELEASE_ROOT_DIR/erts-$ERTS_VSN/bin
+        EMU=beam
+        PROGNAME=`echo $0 | sed 's/.*\\///'`
+        CMD=\"$BINDIR/erlexec -boot $REL_DIR/$BOOTFILE -mode embedded -config $CONFIG_PATH -args_file $VMARGS_PATH\"
+        export EMU
+        export ROOTDIR
+        export BINDIR
+        export PROGNAME
+
+        # Dump environment info for logging purposes
+        echo \"Exec: $CMD\" -- ${1+\"$@\"}
+        echo \"Root: $ROOTDIR\"
+
+        # Log the startup
+        logger -t \"$REL_NAME[$$]\" \"Starting up\"
+
+        # Start the VM
+        exec $CMD -- ${1+\"$@\"}
+        ;;
+
+    foreground)
+        # start up the release in the foreground for use by runit
+        # or other supervision services
+
+        BOOTFILE=$REL_NAME
+        FOREGROUNDOPTIONS=\"-noinput +Bd\"
+
+        # Setup beam-required vars
+        ROOTDIR=$RELEASE_ROOT_DIR
+        BINDIR=$RELEASE_ROOT_DIR/erts-$ERTS_VSN/bin
+        EMU=beam
+        PROGNAME=`echo $0 | sed 's/.*///'`
+        CMD=\"$BINDIR/erlexec $FOREGROUNDOPTIONS -boot $REL_DIR/$BOOTFILE -config $CONFIG_PATH -args_file $VMARGS_PATH\"
+        export EMU
+        export ROOTDIR
+        export BINDIR
+        export PROGNAME
+
+        # Dump environment info for logging purposes
+        echo \"Exec: $CMD\" -- ${1+\"$@\"}
+        echo \"Root: $ROOTDIR\"
+
+        # Start the VM
+        exec $CMD -- ${1+\"$@\"}
+        ;;
+    *)
+        echo \"Usage: $REL_NAME {start|start_boot <file>|foreground|stop|restart|reboot|ping|console|console_clean|console_boot <file>|attach|remote_console|upgrade}\"
+        exit 1
+        ;;
+esac
+
+exit 0">>].
+
+nodetool_contents() ->
+    [<<"%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ft=erlang ts=4 sw=4 et
+%% -------------------------------------------------------------------
+%%
+%% nodetool: Helper Script for interacting with live nodes
+%%
+%% -------------------------------------------------------------------
+
+main(Args) ->
+    ok = start_epmd(),
+    %% Extract the args
+    {RestArgs, TargetNode} = process_args(Args, [], undefined),
+
+    %% See if the node is currently running  -- if it's not, we'll bail
+    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]),
+            halt(1)
+    end,
+
+    case RestArgs of
+        [\"ping\"] ->
+            %% If we got this far, the node already responsed to a ping, so just dump
+            %% a \"pong\"
+            io:format(\"pong\n\");
+        [\"stop\"] ->
+            io:format(\"~p\n\", [rpc:call(TargetNode, init, stop, [], 60000)]);
+        [\"restart\"] ->
+            io:format(\"~p\n\", [rpc:call(TargetNode, init, restart, [], 60000)]);
+        [\"reboot\"] ->
+            io:format(\"~p\n\", [rpc:call(TargetNode, init, reboot, [], 60000)]);
+        [\"rpc\", Module, Function | RpcArgs] ->
+            case rpc:call(TargetNode, list_to_atom(Module), list_to_atom(Function),
+                          [RpcArgs], 60000) of
+                ok ->
+                    ok;
+                {badrpc, Reason} ->
+                    io:format(\"RPC to ~p failed: ~p\n\", [TargetNode, Reason]),
+                    halt(1);
+                _ ->
+                    halt(1)
+            end;
+        [\"rpcterms\", Module, Function, ArgsAsString] ->
+            case rpc:call(TargetNode, list_to_atom(Module), list_to_atom(Function),
+                          consult(ArgsAsString), 60000) of
+                {badrpc, Reason} ->
+                    io:format(\"RPC to ~p failed: ~p\n\", [TargetNode, Reason]),
+                    halt(1);
+                Other ->
+                    io:format(\"~p\n\", [Other])
+            end;
+        Other ->
+            io:format(\"Other: ~p\n\", [Other]),
+            io:format(\"Usage: nodetool {ping|stop|restart|reboot}\n\")
+    end,
+    net_kernel:stop().
+
+process_args([], Acc, TargetNode) ->
+    {lists:reverse(Acc), TargetNode};
+process_args([\"-setcookie\", Cookie | Rest], Acc, TargetNode) ->
+    erlang:set_cookie(node(), list_to_atom(Cookie)),
+    process_args(Rest, Acc, TargetNode);
+process_args([\"-name\", TargetName | Rest], Acc, _) ->
+    ThisNode = append_node_suffix(TargetName, \"_maint_\"),
+    {ok, _} = net_kernel:start([ThisNode, longnames]),
+    process_args(Rest, Acc, nodename(TargetName));
+process_args([\"-sname\", TargetName | Rest], Acc, _) ->
+    ThisNode = append_node_suffix(TargetName, \"_maint_\"),
+    {ok, _} = net_kernel:start([ThisNode, shortnames]),
+    process_args(Rest, Acc, nodename(TargetName));
+process_args([Arg | Rest], Acc, Opts) ->
+    process_args(Rest, [Arg | Acc], Opts).
+
+
+start_epmd() ->
+    [] = os:cmd(epmd_path() ++ \" -daemon\"),
+    ok.
+
+epmd_path() ->
+    ErtsBinDir = filename:dirname(escript:script_name()),
+    Name = \"epmd\",
+    case os:find_executable(Name, ErtsBinDir) of
+        false ->
+            case os:find_executable(Name) of
+                false ->
+                    io:format(\"Could not find epmd.~n\"),
+                    halt(1);
+                GlobalEpmd ->
+                    GlobalEpmd
+            end;
+        Epmd ->
+            Epmd
+    end.
+
+
+nodename(Name) ->
+    case string:tokens(Name, \"@\") of
+        [_Node, _Host] ->
+            list_to_atom(Name);
+        [Node] ->
+            [_, Host] = string:tokens(atom_to_list(node()), \"@\"),
+            list_to_atom(lists:concat([Node, \"@\", Host]))
+    end.
+
+append_node_suffix(Name, Suffix) ->
+    case string:tokens(Name, \"@\") of
+        [Node, Host] ->
+            list_to_atom(lists:concat([Node, Suffix, os:getpid(), \"@\", Host]));
+        [Node] ->
+            list_to_atom(lists:concat([Node, Suffix, os:getpid()]))
+    end.
+
+
+%%
+%% Given a string or binary, parse it into a list of terms, ala file:consult/0
+%%
+consult(Str) when is_list(Str) ->
+    consult([], Str, []);
+consult(Bin) when is_binary(Bin)->
+    consult([], binary_to_list(Bin), []).
+
+consult(Cont, Str, Acc) ->
+    case erl_scan:tokens(Cont, Str, 0) of
+        {done, Result, Remaining} ->
+            case Result of
+                {ok, Tokens, _} ->
+                    {ok, Term} = erl_parse:parse_term(Tokens),
+                    consult([], Remaining, [Term | Acc]);
+                {eof, _Other} ->
+                    lists:reverse(Acc);
+                {error, Info, _} ->
+                    {error, Info}
+            end;
+        {more, Cont1} ->
+            consult(Cont1, eof, Acc)
+    end.">>].
+
+vm_args_file(RelName) ->
+    [<<"## Name of the node
+-name ">>, RelName, <<"@127.0.0.1
+
+## Cookie for distributed erlang
+-setcookie ">>, RelName, <<"
+
+## Heartbeat management; auto-restarts VM if it dies or becomes unresponsive
+## (Disabled by default..use with caution!)
+##-heart
+
+## Enable kernel poll and a few async threads
+##+K true
+##+A 5
+
+## Increase number of concurrent ports/sockets
+##-env ERL_MAX_PORTS 4096
+
+## Tweak GC to run more often
+##-env ERL_FULLSWEEP_AFTER 10">>].