Altered couchdb recipe for use on EngineYard with chef-solo 0.6

a_couchdb_recipe_for_ey.txt

I had to alter the recipe for couchdb available on opscode.com to work on engine yard. (http://community.opscode.com/cookbooks/couchdb)

1. EY still uses chef-solo 0.6 which requires the attributes file to be changed. trial and error found a working solution
2. EY is on gentoo and the service commands hang. Changed recipe to use the typical init.d path. Updated the init.d script.
3. added couchdb.yml template to add file to app_server:/data/[app_name]/shared/config

FYI I commented out the reference to the erlang recipe for now as we've added the erlang package to the entire environment.

couchdb-attributes-default.rb

#
# Author:: Joshua Timberman <[email protected]>
# Cookbook Name:: couchdb
# Attributes:: couchdb
#
# Copyright 2010, Opscode, 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# set[:couch_db][:src_checksum] = "b74a5bfe13e3457798107509cb533d0e7df276adad526ccd5a381c1271108b1f"
# set[:couch_db][:src_version] = "1.0.1"
# set[:couch_db][:src_mirror]  = "http://archive.apache.org/dist/couchdb/#{couch_db.src_version}/apache-couchdb-#{couch_db.src_version}.tar.gz"

# v0.6
couchdb_src_checksum "b74a5bfe13e3457798107509cb533d0e7df276adad526ccd5a381c1271108b1f"
couchdb_src_version "1.0.1"
# couchdb_src_mirror "http://archive.apache.org/dist/couchdb/#{@node[:couchdb_src_version]}/apache-couchdb-#{@node[:couchdb_src_version]}.tar.gz"
couchdb_src_mirror "http://archive.apache.org/dist/couchdb/1.0.1/apache-couchdb-1.0.1.tar.gz"

couchdb-recipes-default.rb

#
# Author:: Joshua Timberman <[email protected]>
# Cookbook Name:: couchdb
# Recipe:: default
#
# Copyright 2008-2009, Opscode, 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# include_recipe "erlang"

if ['solo', 'db_master', 'db_slave'].include?(node[:instance_role])

  ey_cloud_report "Couchdb" do
    message "installing #{node[:couchdb_src_version]}"
  end
  
  package "couchdb" do
    package_name value_for_platform(
      "openbsd" => { "default" => "apache-couchdb" },
      "gentoo" => { "default" => "dev-db/couchdb" },
      "default" => "couchdb"
    )
  end
  
  remote_file "/etc/init.d/couchdb" do
    owner "root"
    group "root"
    mode 0755
    source "couchdb.init"
    backup false
    action :create
  end   
  
  directory "/var/lib/couchdb" do
    owner "couchdb"
    group "couchdb"
    recursive true
    path value_for_platform(
      "openbsd" => { "default" => "/var/couchdb" },
      "freebsd" => { "default" => "/var/couchdb" },
      "gentoo" => { "default" => "/var/couchdb" },
      "default" => "/var/lib/couchdb"
    )
  end
  
  ey_cloud_report "starting couchdb server" do
    message "starting couchdb"
  end
  service "couchdb" do
    if platform?("centos","redhat","fedora")
      start_command "/sbin/service couchdb start &> /dev/null"
      stop_command "/sbin/service couchdb stop &> /dev/null"
    elsif platform?("gentoo")
      start_command "/etc/init.d/couchdb start &> /dev/null"
      stop_command "/etc/init.d/couchdb stop &> /dev/null"
    end
    supports [ :restart, :status ]
    action [ :enable, :start ]    
  end
  ey_cloud_report "started couchdb server" do
    message "started couchdb"
  end

end

if ['solo', 'app_master', 'app'].include?(node[:instance_role])
  ey_cloud_report "Couchdb" do
    message "building config"
  end
  
  node[:applications].each do |app_name,data|
    template "/data/#{app_name}/shared/config/couchdb.yml" do
      owner node[:owner_name]
      group node[:owner_name]
      mode 0644
      source "couchdb.yml.erb"
      variables({
        :app_name => app_name,
        :couch_host => node["engineyard"]["environment"]["instances"].select{|hh|hh["name"] == 'util1'}.first["private_hostname"]
      })
    end
  end
end

couchdb-recipes-source.rb

#
# Author:: Joshua Timberman <[email protected]>
# Cookbook Name:: couchdb
# Recipe:: source
#
# Copyright 2010, Opscode, 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

if ['solo', 'db_master', 'db_replica'].include?(node[:instance_role])

  ey_cloud_report "Couchdb Source" do
    message "installing #{node[:couch_db][:version]}"
  end

  if node[:platform] == "ubuntu" && node[:platform_version].to_f == 8.04
    log "Ubuntu 8.04 does not supply sufficient development libraries via APT to install CouchDB #{node[:couch_db][:src_version]} from source."
    return
  end

  # include_recipe "erlang"

  couchdb_tar_gz = File.join(Chef::Config[:file_cache_path], "/", "apache-couchdb-#{node[:couch_db][:src_version]}.tar.gz")
  compile_flags = String.new
  dev_pkgs = Array.new

  case node[:platform]
  when "debian", "ubuntu"

    dev_pkgs << "libicu-dev"
    dev_pkgs << "libcurl4-openssl-dev"
    dev_pkgs << value_for_platform(
      "debian" => { "default" => "libmozjs-dev" },
      "ubuntu" => {
        "9.04" => "libmozjs-dev",
        "9.10" => "libmozjs-dev",
        "default" => "xulrunner-dev"
      }
    )

    dev_pkgs.each do |pkg|
      package pkg
    end

    if node[:platform_version].to_f == 10.04
      compile_flags = "--with-js-lib=/usr/lib/xulrunner-devel-1.9.2.8/lib --with-js-include=/usr/lib/xulrunner-devel-1.9.2.8/include"
    end
  end

  remote_file couchdb_tar_gz do
    checksum node[:couch_db][:src_checksum]
    source node[:couch_db][:src_mirror]
  end

  bash "install couchdb #{node[:couch_db][:src_version]}" do
    cwd Chef::Config[:file_cache_path]
    code <<-EOH
      tar -zxf #{couchdb_tar_gz}
      cd apache-couchdb-#{node[:couch_db][:src_version]} && ./configure #{compile_flags} && make && make install
    EOH
    not_if { ::FileTest.exists?("/usr/local/bin/couchdb") }
  end

  user "couchdb" do
    home "/usr/local/var/lib/couchdb"
    comment "CouchDB Administrator"
    supports :manage_home => false
    system true
  end

  %w{ var/lib/couchdb var/log/couchdb var/run etc/couchdb }.each do |dir|
    directory "/usr/local/#{dir}" do
      owner "couchdb"
      group "couchdb"
      mode "0770"
    end
  end

  cookbook_file "/etc/init.d/couchdb" do
    source "couchdb.init"
    owner "root"
    group "root"
    mode "0755"
  end

  service "couchdb" do
    supports [ :restart, :status ]
    action [:enable, :start]
  end

end

couchdb-templates-default-couchdb.yml.erb

production: http://<%= @couch_host %>:5984/<%= @app_name %>

files-default-couchdb.init

#!/bin/sh -e

# 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

### BEGIN INIT INFO
# Provides:          couchdb
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Apache CouchDB init script
# Description:       Apache CouchDB init script for the database server.
### END INIT INFO

SCRIPT_OK=0
SCRIPT_ERROR=1

DESCRIPTION="database server"
NAME=couchdb
SCRIPT_NAME=`basename $0`
COUCHDB=/usr/bin/couchdb
COUCHDB_USER=couchdb
COUCHDB_GROUP=couchdb
CONFIGURATION_FILE=/etc/couchdb/couchdb.conf
RUN_DIR=/var/run/couchdb
PIDFILE=/var/run/couchdb/couchdb.pid
LSB_LIBRARY=/lib/lsb/init-functions
LOG=/var/log/couchdb/couch.log
COUCHDB_STDOUT_FILE="$LOG"
COUCHDB_STDERR_FILE="$LOG"

if test ! -x $COUCHDB; then
    exit $SCRIPT_ERROR
fi

if test -r $CONFIGURATION_FILE; then
    . $CONFIGURATION_FILE
fi

if test -r $LOG; then
    chown $COUCHDB_USER:$COUCHDB_GROUP $LOG
fi

log_daemon_msg () {
    # Dummy function to be replaced by LSB library.

    echo $@
}

log_end_msg () {
    # Dummy function to be replaced by LSB library.

    if test "$1" != "0"; then
      echo "Error with $DESCRIPTION: $NAME"
    fi
    return $1
}

if test -r $LSB_LIBRARY; then
    . $LSB_LIBRARY
fi

start_couchdb () {
    # Start Apache CouchDB as a background process.

    command="$COUCHDB -p $PIDFILE -b"
    if test -n "$COUCHDB_STDOUT_FILE"; then
        command="$command -o $COUCHDB_STDOUT_FILE"
    fi
    if test -n "$COUCHDB_STDERR_FILE"; then
        command="$command -e $COUCHDB_STDERR_FILE"
    fi
    if test -n "$COUCHDB_RESPAWN_TIMEOUT"; then
        command="$command -r $COUCHDB_RESPAWN_TIMEOUT"
    fi
    if test -n "$COUCHDB_OPTIONS"; then
        command="$command $COUCHDB_OPTIONS"
    fi
    mkdir -p "$RUN_DIR"
    if test -n "$COUCHDB_USER"; then
        chown $COUCHDB_USER "$RUN_DIR"
        if su $COUCHDB_USER -c "$command" > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    else
        if $command > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    fi
}

stop_couchdb () {
    # Stop the running Apache CouchDB process.

    command="$COUCHDB -p $PIDFILE -d"
    if test -n "$COUCHDB_OPTIONS"; then
        command="$command $COUCHDB_OPTIONS"
    fi
    if test -n "$COUCHDB_USER"; then
        if su $COUCHDB_USER -c "$command" > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    else
        if $command > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    fi
}

display_status () {
    # Display the status of the running Apache CouchDB process.

    $COUCHDB -s -p $PIDFILE 
}

parse_script_option_list () {
    # Parse arguments passed to the script and take appropriate action.

    case "$1" in
        start)
            log_daemon_msg "Starting $DESCRIPTION" $NAME
            if start_couchdb; then
                log_end_msg $SCRIPT_OK
            else
                log_end_msg $SCRIPT_ERROR
            fi
            ;;
        stop)
            log_daemon_msg "Stopping $DESCRIPTION" $NAME
            if stop_couchdb; then
                log_end_msg $SCRIPT_OK
            else
                log_end_msg $SCRIPT_ERROR
            fi
            ;;
        restart|force-reload)
            log_daemon_msg "Restarting $DESCRIPTION" $NAME
            if stop_couchdb; then
                if start_couchdb; then
                    log_end_msg $SCRIPT_OK
                else
                    log_end_msg $SCRIPT_ERROR
                fi
            else
                log_end_msg $SCRIPT_ERROR
            fi
            ;;
        status)
            display_status
            ;;
        *)
            cat << EOF >&2
Usage: $SCRIPT_NAME {start|stop|restart|force-reload|status}
EOF
            exit $SCRIPT_ERROR
            ;;
    esac
}

parse_script_option_list $@