[chef] Re: Re: Running chef-client as a service

[Joshua Miller < >]

Here is what I do for my debian package installs, one problem I have not 
fixed is it does not reload chef upstart when the values change ... new to 
upstart and  a restart does not pickup the new vars so I have to figure it 
out later.  Since I dont change it much I have not really cared.


Joshua



joshua-millers-macbook-pro:~ jmiller$ cat 
site-cookbooks/chef/recipes/client-deb.rb
case node[:platform]
when "ubuntu"
  if node[:platform_version].to_f >= 9.10 

    template "/etc/init.d/chef-client" do
      source "chef-client-upstartjob.erb"
      owner "root"
      group "root"
      mode 0774
      backup 0
     not_if do File.symlink?("/etc/init.d/chef-server") end
    end

    service "chef-client" do
       provider Chef::Provider::Service::Upstart
       supports :restart => true, :reload => true
    end

 
    template "/etc/init/chef-client.conf" do
      source "upstart-chef-client.conf.erb"
      owner "root"
      group "root"
      mode 0644
      backup 0
      notifies :start, resources(:service => "chef-client")
      not_if do File.symlink?("/etc/init.d/chef-server") end
    end

  end

end




joshua-millers-macbook-pro:~ jmiller$ cat 
site-cookbooks/chef/templates/default/upstart-chef-client.conf.erb 
start on runlevel [2345]

script 
        exec /usr/bin/env chef-client -c /etc/chef/client.rb -i <%= 
@node[:chef][:client_interval] %>  -s <%= @node[:chef][:client_splay] %>
end script

# Restart the process if it dies with a signal
# or exit code not given by the 'normal exit' stanza.
respawn

# Give up if restart occurs 10 times in 90 seconds.
respawn limit 10 90
joshua-millers-macbook-pro:~ jmiller$ 



Then I just jacked the upstart stuff init script:


joshua-millers-macbook-pro:~ jmiller$ cat 
site-cookbooks/chef/templates/default/chef-client-upstartjob.erb 
#!/bin/sh -e
# upstart-job
#
# Symlink target for initscripts that have been converted to Upstart.

set -e

INITSCRIPT="$(basename "$0")"
JOB="${INITSCRIPT%.sh}"

if [ "$JOB" = "upstart-job" ]; then
    if [ -z "$1" ]; then
        echo "Usage: upstart-job JOB COMMAND" 1>&2
        exit 1
    fi

    JOB="$1"
    INITSCRIPT="$1"
    shift
else
    if [ -z "$1" ]; then
        echo "Usage: $0 COMMAND" 1>&2
        exit 1
    fi
fi

COMMAND="$1"
shift


if [ -z "$DPKG_MAINTSCRIPT_PACKAGE" ]; then
        ECHO=echo
else
        ECHO=:
fi

$ECHO "Rather than invoking init scripts through /etc/init.d, use the 
service(8)"
$ECHO "utility, e.g. service $INITSCRIPT $COMMAND"

case $COMMAND in
status)
    $ECHO
    $ECHO "Since the script you are attempting to invoke has been converted 
to an"
    $ECHO "Upstart job, you may also use the $COMMAND(8) utility, e.g. 
$COMMAND $JOB"
    $COMMAND "$JOB"
    ;;
start|stop|restart)
    $ECHO
    $ECHO "Since the script you are attempting to invoke has been converted 
to an"
    $ECHO "Upstart job, you may also use the $COMMAND(8) utility, e.g. 
$COMMAND $JOB"
    PID=$(status "$JOB" 2>/dev/null | awk '/[0-9]$/ { print $NF }')
    if [ -z "$PID" ] && [ "$COMMAND" = "stop" ]; then
        exit 0
    elif [ -n "$PID" ] && [ "$COMMAND" = "start" ]; then
        exit 0
    elif [ -z "$PID" ] && [ "$COMMAND" = "restart" ]; then
        start "$JOB"
        exit 0
    fi
    $COMMAND "$JOB"
    ;;
reload|force-reload)
    $ECHO
    $ECHO "Since the script you are attempting to invoke has been converted 
to an"
    $ECHO "Upstart job, you may also use the $COMMAND(8) utility, e.g. 
$COMMAND $JOB"
    reload "$JOB"
    ;;
*)
    $ECHO
    $ECHO "The script you are attempting to invoke has been converted to an 
Upstart" 1>&2
    $ECHO "job, but $COMMAND is not supported for Upstart jobs." 1>&2
    exit 1
esac
joshua-millers-macbook-pro:~ jmiller



On May 31, 2010, at 9:04 AM, Daniel DeLeo wrote:

> Ohai!
> The bootstrap recipe uses the node[:chef][:init_style] attribute to
> determine which init system to use:
> 
> http://github.com/opscode/cookbooks/blob/master/chef/recipes/bootstrap_client.rb#L31-63
> 
> It looks like upstart isn't supported yet, so I'd recommend creating
> your own post-bootstrap recipe to configure chef to run via upstart.
> 
> HTH,
> Dan DeLeo
> 
> On Mon, May 31, 2010 at 4:31 AM, Dmitry V'yal 
> <
 >
>  wrote:
>> Greetings,
>> 
>> I've bootstrapped chef clients through vpn as I planned earlier. Now what 
>> is
>> the best way to run chef-client automatically? I've read, chef uses runit
>> for managing services, but ubuntu-9.10 I'm testing on is based on Upstart.
>> Is there really a point in replacing upstart in favor of runit?
>> 
>> What can be advised in my situation?
>> 
>> Best wishes,
>> Dmitry
>>