Wednesday, August 6, 2014

Installing PostgreSQL on EC2 via Chef solo and Testing with serverspec

A quick introduction of installing and running tests on PostgreSQL on EC2.

Installing openssl and postgresql cookbooks from the community site
$ knife cookbook site install openssl postgresql
Generating md5 password for database
$ echo -n 'postgresq!' 'postgres' | openssl md5 | sed -e 's/.* /md5/'
md5f5a4fd94a405896c47f8153794b05596
Creating node object file
nodes/host.json
{
  "postgresql":{
    "password":{
      "postgres":"md5f5a4fd94a405896c47f8153794b05596"
    }
  },
  "run_list":[
    "recipe[postgresql]",
    "recipe[postgresql::server]"
  ]
}
Running chef-solo on remote hos
$ knife solo cook chef-node01
Running Chef on chef-node01...
Checking Chef version...
Uploading the kitchen...
Generating solo config...
Running Chef...

Starting Chef Client, version 11.14.2
Compiling Cookbooks...
Converging 16 resources
Recipe: postgresql::client
  * package[postgresql-devel] action install
    - install version 9.2-1.20.amzn1 of package postgresql-devel
Recipe: postgresql::server_redhat
  * group[postgres] action create
    - create group[postgres]
  * user[postgres] action create
    - create user postgres
  * directory[/var/lib/pgsql9/data] action create
    - create new directory /var/lib/pgsql9/data
    - change owner from '' to 'postgres'
    - change group from '' to 'postgres'
  * package[postgresql-server] action install
    - install version 9.2-1.20.amzn1 of package postgresql-server
  * template[/etc/sysconfig/pgsql/postgresql] action create
    - create new file /etc/sysconfig/pgsql/postgresql
    - update content in file /etc/sysconfig/pgsql/postgresql from none to 63ba59
    --- /etc/sysconfig/pgsql/postgresql 2014-08-06 07:19:54.316000518 +0000
    +++ /tmp/chef-rendered-template20140806-1663-1n0wbzo        2014-08-06 07:19:54.320000491 +0000
    @@ -1 +1,3 @@
    +PGDATA=/var/lib/pgsql9/data
    +PGPORT=5432
    - change mode from '' to '0644'
  * execute[/sbin/service postgresql initdb ] action run
    - execute /sbin/service postgresql initdb 
  * service[postgresql] action enable
    - enable service service[postgresql]
  * service[postgresql] action start
    - start service service[postgresql]
Recipe: postgresql::server
  * template[/var/lib/pgsql9/data/postgresql.conf] action create
    - update content in file /var/lib/pgsql9/data/postgresql.conf from 4c34f3 to 61e694
    --- /var/lib/pgsql9/data/postgresql.conf    2014-08-06 07:19:55.911989875 +0000
    +++ /tmp/chef-rendered-template20140806-1663-wl4pwj 2014-08-06 07:20:01.239954346 +0000
    @@ -1,577 +1,22 @@
    -# -----------------------------
     # PostgreSQL configuration file
    -# -----------------------------
    -#
    -# This file consists of lines of the form:
    -#
    -#   name = value
    -#
    -# (The "=" is optional.)  Whitespace may be used.  Comments are introduced with
    -# "#" anywhere on a line.  The complete list of parameter names and allowed
    -# values can be found in the PostgreSQL documentation.
    -#
    -# The commented-out settings shown in this file represent the default values.
    -# Re-commenting a setting is NOT sufficient to revert it to the default value;
    -# you need to reload the server.
    -#
    -# This file is read on server startup and when the server receives a SIGHUP
    -# signal.  If you edit the file on a running system, you have to SIGHUP the
    -# server for the changes to take effect, or use "pg_ctl reload".  Some
    -# parameters, which are marked below, require a server shutdown and restart to
    -# take effect.
    -#
    -# Any parameter can also be given as a command-line option to the server, e.g.,
    -# "postgres -c log_connections=on".  Some parameters can be changed at run time
    -# with the "SET" SQL command.
    -#
    -# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
    -#                MB = megabytes                     s   = seconds
    -#                GB = gigabytes                     min = minutes
    -#                                                   h   = hours
    -#                                                   d   = days
    +# This file was automatically generated and dropped off by chef!
    +# Please refer to the PostgreSQL documentation for details on
    +# configuration settings.
     
    -
    -#------------------------------------------------------------------------------
    -# FILE LOCATIONS
    -#------------------------------------------------------------------------------
    -
    -# The default values of these variables are driven from the -D command-line
    -# option or PGDATA environment variable, represented here as ConfigDir.
    -
    -#data_directory = 'ConfigDir'              # use data in another directory
    -                                   # (change requires restart)
    -#hba_file = 'ConfigDir/pg_hba.conf'        # host-based authentication file
    -                                   # (change requires restart)
    -#ident_file = 'ConfigDir/pg_ident.conf'    # ident configuration file
    -                                   # (change requires restart)
    -
    -# If external_pid_file is not explicitly set, no extra PID file is written.
    -#external_pid_file = ''                    # write an extra PID file
    -                                   # (change requires restart)
    -
    -
    -#------------------------------------------------------------------------------
    -# CONNECTIONS AND AUTHENTICATION
    -#------------------------------------------------------------------------------
    -
    -# - Connection Settings -
    -
    -#listen_addresses = 'localhost'            # what IP address(es) to listen on;
    -                                   # comma-separated list of addresses;
    -                                   # defaults to 'localhost'; use '*' for all
    -                                   # (change requires restart)
    -#port = 5432                               # (change requires restart)
    -# Note: In RHEL/Fedora installations, you can't set the port number here;
    -# adjust it in the service file instead.
    -max_connections = 100                      # (change requires restart)
    -# Note:  Increasing max_connections costs ~400 bytes of shared memory per
    -# connection slot, plus lock space (see max_locks_per_transaction).
    -#superuser_reserved_connections = 3        # (change requires restart)
    -#unix_socket_directories = '/var/run/postgresql, /tmp'     # comma-separated list of directories
    -                                   # (change requires restart)
    -#unix_socket_group = ''                    # (change requires restart)
    -#unix_socket_permissions = 0777            # begin with 0 to use octal notation
    -                                   # (change requires restart)
    -#bonjour = off                             # advertise server via Bonjour
    -                                   # (change requires restart)
    -#bonjour_name = ''                 # defaults to the computer name
    -                                   # (change requires restart)
    -
    -# - Security and Authentication -
    -
    -#authentication_timeout = 1min             # 1s-600s
    -#ssl = off                         # (change requires restart)
    -#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH' # allowed SSL ciphers
    -                                   # (change requires restart)
    -#ssl_renegotiation_limit = 512MB   # amount of data between renegotiations
    -#ssl_cert_file = 'server.crt'              # (change requires restart)
    -#ssl_key_file = 'server.key'               # (change requires restart)
    -#ssl_ca_file = ''                  # (change requires restart)
    -#ssl_crl_file = ''                 # (change requires restart)
    -#password_encryption = on
    -#db_user_namespace = off
    -
    -# Kerberos and GSSAPI
    -#krb_server_keyfile = ''
    -#krb_srvname = 'postgres'          # (Kerberos only)
    -#krb_caseins_users = off
    -
    -# - TCP Keepalives -
    -# see "man 7 tcp" for details
    -
    -#tcp_keepalives_idle = 0           # TCP_KEEPIDLE, in seconds;
    -                                   # 0 selects the system default
    -#tcp_keepalives_interval = 0               # TCP_KEEPINTVL, in seconds;
    -                                   # 0 selects the system default
    -#tcp_keepalives_count = 0          # TCP_KEEPCNT;
    -                                   # 0 selects the system default
    -
    -
    -#------------------------------------------------------------------------------
    -# RESOURCE USAGE (except WAL)
    -#------------------------------------------------------------------------------
    -
    -# - Memory -
    -
    -shared_buffers = 32MB                      # min 128kB
    -                                   # (change requires restart)
    -#temp_buffers = 8MB                        # min 800kB
    -#max_prepared_transactions = 0             # zero disables the feature
    -                                   # (change requires restart)
    -# Note:  Increasing max_prepared_transactions costs ~600 bytes of shared memory
    -# per transaction slot, plus lock space (see max_locks_per_transaction).
    -# It is not advisable to set max_prepared_transactions nonzero unless you
    -# actively intend to use prepared transactions.
    -#work_mem = 1MB                            # min 64kB
    -#maintenance_work_mem = 16MB               # min 1MB
    -#max_stack_depth = 2MB                     # min 100kB
    -
    -# - Disk -
    -
    -#temp_file_limit = -1                      # limits per-session temp file space
    -                                   # in kB, or -1 for no limit
    -
    -# - Kernel Resource Usage -
    -
    -#max_files_per_process = 1000              # min 25
    -                                   # (change requires restart)
    -#shared_preload_libraries = ''             # (change requires restart)
    -
    -# - Cost-Based Vacuum Delay -
    -
    -#vacuum_cost_delay = 0ms           # 0-100 milliseconds
    -#vacuum_cost_page_hit = 1          # 0-10000 credits
    -#vacuum_cost_page_miss = 10                # 0-10000 credits
    -#vacuum_cost_page_dirty = 20               # 0-10000 credits
    -#vacuum_cost_limit = 200           # 1-10000 credits
    -
    -# - Background Writer -
    -
    -#bgwriter_delay = 200ms                    # 10-10000ms between rounds
    -#bgwriter_lru_maxpages = 100               # 0-1000 max buffers written/round
    -#bgwriter_lru_multiplier = 2.0             # 0-10.0 multipler on buffers scanned/round
    -
    -# - Asynchronous Behavior -
    -
    -#effective_io_concurrency = 1              # 1-1000; 0 disables prefetching
    -
    -
    -#------------------------------------------------------------------------------
    -# WRITE AHEAD LOG
    -#------------------------------------------------------------------------------
    -
    -# - Settings -
    -
    -#wal_level = minimal                       # minimal, archive, or hot_standby
    -                                   # (change requires restart)
    -#fsync = on                                # turns forced synchronization on or off
    -#synchronous_commit = on           # synchronization level;
    -                                   # off, local, remote_write, or on
    -#wal_sync_method = fsync           # the default is the first option
    -                                   # supported by the operating system:
    -                                   #   open_datasync
    -                                   #   fdatasync (default on Linux)
    -                                   #   fsync
    -                                   #   fsync_writethrough
    -                                   #   open_sync
    -#full_page_writes = on                     # recover from partial page writes
    -#wal_buffers = -1                  # min 32kB, -1 sets based on shared_buffers
    -                                   # (change requires restart)
    -#wal_writer_delay = 200ms          # 1-10000 milliseconds
    -
    -#commit_delay = 0                  # range 0-100000, in microseconds
    -#commit_siblings = 5                       # range 1-1000
    -
    -# - Checkpoints -
    -
    -#checkpoint_segments = 3           # in logfile segments, min 1, 16MB each
    -#checkpoint_timeout = 5min         # range 30s-1h
    -#checkpoint_completion_target = 0.5        # checkpoint target duration, 0.0 - 1.0
    -#checkpoint_warning = 30s          # 0 disables
    -
    -# - Archiving -
    -
    -#archive_mode = off                # allows archiving to be done
    -                           # (change requires restart)
    -#archive_command = ''              # command to use to archive a logfile segment
    -                           # placeholders: %p = path of file to archive
    -                           #               %f = file name only
    -                           # e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
    -#archive_timeout = 0               # force a logfile segment switch after this
    -                           # number of seconds; 0 disables
    -
    -
    -#------------------------------------------------------------------------------
    -# REPLICATION
    -#------------------------------------------------------------------------------
    -
    -# - Sending Server(s) -
    -
    -# Set these on the master and on any standby that will send replication data.
    -
    -#max_wal_senders = 0               # max number of walsender processes
    -                           # (change requires restart)
    -#wal_keep_segments = 0             # in logfile segments, 16MB each; 0 disables
    -#replication_timeout = 60s # in milliseconds; 0 disables
    -
    -# - Master Server -
    -
    -# These settings are ignored on a standby server.
    -
    -#synchronous_standby_names = ''    # standby servers that provide sync rep
    -                           # comma-separated list of application_name
    -                           # from standby(s); '*' = all
    -#vacuum_defer_cleanup_age = 0      # number of xacts by which cleanup is delayed
    -
    -# - Standby Servers -
    -
    -# These settings are ignored on a master server.
    -
    -#hot_standby = off                 # "on" allows queries during recovery
    -                                   # (change requires restart)
    -#max_standby_archive_delay = 30s   # max delay before canceling queries
    -                                   # when reading WAL from archive;
    -                                   # -1 allows indefinite delay
    -#max_standby_streaming_delay = 30s # max delay before canceling queries
    -                                   # when reading streaming WAL;
    -                                   # -1 allows indefinite delay
    -#wal_receiver_status_interval = 10s        # send replies at least this often
    -                                   # 0 disables
    -#hot_standby_feedback = off                # send info from standby to prevent
    -                                   # query conflicts
    -
    -
    -#------------------------------------------------------------------------------
    -# QUERY TUNING
    -#------------------------------------------------------------------------------
    -
    -# - Planner Method Configuration -
    -
    -#enable_bitmapscan = on
    -#enable_hashagg = on
    -#enable_hashjoin = on
    -#enable_indexscan = on
    -#enable_indexonlyscan = on
    -#enable_material = on
    -#enable_mergejoin = on
    -#enable_nestloop = on
    -#enable_seqscan = on
    -#enable_sort = on
    -#enable_tidscan = on
    -
    -# - Planner Cost Constants -
    -
    -#seq_page_cost = 1.0                       # measured on an arbitrary scale
    -#random_page_cost = 4.0                    # same scale as above
    -#cpu_tuple_cost = 0.01                     # same scale as above
    -#cpu_index_tuple_cost = 0.005              # same scale as above
    -#cpu_operator_cost = 0.0025                # same scale as above
    -#effective_cache_size = 128MB
    -
    -# - Genetic Query Optimizer -
    -
    -#geqo = on
    -#geqo_threshold = 12
    -#geqo_effort = 5                   # range 1-10
    -#geqo_pool_size = 0                        # selects default based on effort
    -#geqo_generations = 0                      # selects default based on effort
    -#geqo_selection_bias = 2.0         # range 1.5-2.0
    -#geqo_seed = 0.0                   # range 0.0-1.0
    -
    -# - Other Planner Options -
    -
    -#default_statistics_target = 100   # range 1-10000
    -#constraint_exclusion = partition  # on, off, or partition
    -#cursor_tuple_fraction = 0.1               # range 0.0-1.0
    -#from_collapse_limit = 8
    -#join_collapse_limit = 8           # 1 disables collapsing of explicit
    -                                   # JOIN clauses
    -
    -
    -#------------------------------------------------------------------------------
    -# ERROR REPORTING AND LOGGING
    -#------------------------------------------------------------------------------
    -
    -# - Where to Log -
    -
    -#log_destination = 'stderr'                # Valid values are combinations of
    -                                   # stderr, csvlog, syslog, and eventlog,
    -                                   # depending on platform.  csvlog
    -                                   # requires logging_collector to be on.
    -
    -# This is used when logging to stderr:
    -logging_collector = on                     # Enable capturing of stderr and csvlog
    -                                   # into log files. Required to be on for
    -                                   # csvlogs.
    -                                   # (change requires restart)
    -
    -# These are only used if logging_collector is on:
    -#log_directory = 'pg_log'          # directory where log files are written,
    -                                   # can be absolute or relative to PGDATA
    -log_filename = 'postgresql-%a.log' # log file name pattern,
    -                                   # can include strftime() escapes
    -#log_file_mode = 0600                      # creation mode for log files,
    -                                   # begin with 0 to use octal notation
    -log_truncate_on_rotation = on              # If on, an existing log file with the
    -                                   # same name as the new log file will be
    -                                   # truncated rather than appended to.
    -                                   # But such truncation only occurs on
    -                                   # time-driven rotation, not on restarts
    -                                   # or size-driven rotation.  Default is
    -                                   # off, meaning append to existing files
    -                                   # in all cases.
    -log_rotation_age = 1d                      # Automatic rotation of logfiles will
    -                                   # happen after that time.  0 disables.
    -log_rotation_size = 0                      # Automatic rotation of logfiles will
    -                                   # happen after that much log output.
    -                                   # 0 disables.
    -
    -# These are relevant when logging to syslog:
    -#syslog_facility = 'LOCAL0'
    -#syslog_ident = 'postgres'
    -
    -# This is only relevant when logging to eventlog (win32):
    -#event_source = 'PostgreSQL'
    -
    -# - When to Log -
    -
    -#client_min_messages = notice              # values in order of decreasing detail:
    -                                   #   debug5
    -                                   #   debug4
    -                                   #   debug3
    -                                   #   debug2
    -                                   #   debug1
    -                                   #   log
    -                                   #   notice
    -                                   #   warning
    -                                   #   error
    -
    -#log_min_messages = warning                # values in order of decreasing detail:
    -                                   #   debug5
    -                                   #   debug4
    -                                   #   debug3
    -                                   #   debug2
    -                                   #   debug1
    -                                   #   info
    -                                   #   notice
    -                                   #   warning
    -                                   #   error
    -                                   #   log
    -                                   #   fatal
    -                                   #   panic
    -
    -#log_min_error_statement = error   # values in order of decreasing detail:
    -                                   #   debug5
    -                                   #   debug4
    -                                   #   debug3
    -                                   #   debug2
    -                                   #   debug1
    -                                   #   info
    -                                   #   notice
    -                                   #   warning
    -                                   #   error
    -                                   #   log
    -                                   #   fatal
    -                                   #   panic (effectively off)
    -
    -#log_min_duration_statement = -1   # -1 is disabled, 0 logs all statements
    -                                   # and their durations, > 0 logs only
    -                                   # statements running at least this number
    -                                   # of milliseconds
    -
    -
    -# - What to Log -
    -
    -#debug_print_parse = off
    -#debug_print_rewritten = off
    -#debug_print_plan = off
    -#debug_pretty_print = on
    -#log_checkpoints = off
    -#log_connections = off
    -#log_disconnections = off
    -#log_duration = off
    -#log_error_verbosity = default             # terse, default, or verbose messages
    -#log_hostname = off
    -#log_line_prefix = ''                      # special values:
    -                                   #   %a = application name
    -                                   #   %u = user name
    -                                   #   %d = database name
    -                                   #   %r = remote host and port
    -                                   #   %h = remote host
    -                                   #   %p = process ID
    -                                   #   %t = timestamp without milliseconds
    -                                   #   %m = timestamp with milliseconds
    -                                   #   %i = command tag
    -                                   #   %e = SQL state
    -                                   #   %c = session ID
    -                                   #   %l = session line number
    -                                   #   %s = session start timestamp
    -                                   #   %v = virtual transaction ID
    -                                   #   %x = transaction ID (0 if none)
    -                                   #   %q = stop here in non-session
    -                                   #        processes
    -                                   #   %% = '%'
    -                                   # e.g. '<%u%%%d> '
    -#log_lock_waits = off                      # log lock waits >= deadlock_timeout
    -#log_statement = 'none'                    # none, ddl, mod, all
    -#log_temp_files = -1                       # log temporary files equal or larger
    -                                   # than the specified size in kilobytes;
    -                                   # -1 disables, 0 logs all temp files
    -log_timezone = 'UTC'
    -
    -
    -#------------------------------------------------------------------------------
    -# RUNTIME STATISTICS
    -#------------------------------------------------------------------------------
    -
    -# - Query/Index Statistics Collector -
    -
    -#track_activities = on
    -#track_counts = on
    -#track_io_timing = off
    -#track_functions = none                    # none, pl, all
    -#track_activity_query_size = 1024  # (change requires restart)
    -#update_process_title = on
    -#stats_temp_directory = 'pg_stat_tmp'
    -
    -
    -# - Statistics Monitoring -
    -
    -#log_parser_stats = off
    -#log_planner_stats = off
    -#log_executor_stats = off
    -#log_statement_stats = off
    -
    -
    -#------------------------------------------------------------------------------
    -# AUTOVACUUM PARAMETERS
    -#------------------------------------------------------------------------------
    -
    -#autovacuum = on                   # Enable autovacuum subprocess?  'on'
    -                                   # requires track_counts to also be on.
    -#log_autovacuum_min_duration = -1  # -1 disables, 0 logs all actions and
    -                                   # their durations, > 0 logs only
    -                                   # actions running at least this number
    -                                   # of milliseconds.
    -#autovacuum_max_workers = 3                # max number of autovacuum subprocesses
    -                                   # (change requires restart)
    -#autovacuum_naptime = 1min         # time between autovacuum runs
    -#autovacuum_vacuum_threshold = 50  # min number of row updates before
    -                                   # vacuum
    -#autovacuum_analyze_threshold = 50 # min number of row updates before
    -                                   # analyze
    -#autovacuum_vacuum_scale_factor = 0.2      # fraction of table size before vacuum
    -#autovacuum_analyze_scale_factor = 0.1     # fraction of table size before analyze
    -#autovacuum_freeze_max_age = 200000000     # maximum XID age before forced vacuum
    -                                   # (change requires restart)
    -#autovacuum_vacuum_cost_delay = 20ms       # default vacuum cost delay for
    -                                   # autovacuum, in milliseconds;
    -                                   # -1 means use vacuum_cost_delay
    -#autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
    -                                   # autovacuum, -1 means use
    -                                   # vacuum_cost_limit
    -
    -
    -#------------------------------------------------------------------------------
    -# CLIENT CONNECTION DEFAULTS
    -#------------------------------------------------------------------------------
    -
    -# - Statement Behavior -
    -
    -#search_path = '"$user",public'            # schema names
    -#default_tablespace = ''           # a tablespace name, '' uses the default
    -#temp_tablespaces = ''                     # a list of tablespace names, '' uses
    -                                   # only default tablespace
    -#check_function_bodies = on
    -#default_transaction_isolation = 'read committed'
    -#default_transaction_read_only = off
    -#default_transaction_deferrable = off
    -#session_replication_role = 'origin'
    -#statement_timeout = 0                     # in milliseconds, 0 is disabled
    -#vacuum_freeze_min_age = 50000000
    -#vacuum_freeze_table_age = 150000000
    -#bytea_output = 'hex'                      # hex, escape
    -#xmlbinary = 'base64'
    -#xmloption = 'content'
    -
    -# - Locale and Formatting -
    -
     datestyle = 'iso, mdy'
    -#intervalstyle = 'postgres'
    -timezone = 'UTC'
    -#timezone_abbreviations = 'Default'     # Select the set of available time zone
    -                                   # abbreviations.  Currently, there are
    -                                   #   Default
    -                                   #   Australia
    -                                   #   India
    -                                   # You can create your own file in
    -                                   # share/timezonesets/.
    -#extra_float_digits = 0                    # min -15, max 3
    -#client_encoding = sql_ascii               # actually, defaults to database
    -                                   # encoding
    -
    -# These settings are initialized by initdb, but they can be changed.
    -lc_messages = 'en_US.UTF-8'                        # locale for system error message
    -                                   # strings
    -lc_monetary = 'en_US.UTF-8'                        # locale for monetary formatting
    -lc_numeric = 'en_US.UTF-8'                 # locale for number formatting
    -lc_time = 'en_US.UTF-8'                            # locale for time formatting
    -
    -# default configuration for text search
     default_text_search_config = 'pg_catalog.english'
    -
    -# - Other Defaults -
    -
    -#dynamic_library_path = '$libdir'
    -#local_preload_libraries = ''
    -
    -
    -#------------------------------------------------------------------------------
    -# LOCK MANAGEMENT
    -#------------------------------------------------------------------------------
    -
    -#deadlock_timeout = 1s
    -#max_locks_per_transaction = 64            # min 10
    -                                   # (change requires restart)
    -# Note:  Each lock table slot uses ~270 bytes of shared memory, and there are
    -# max_locks_per_transaction * (max_connections + max_prepared_transactions)
    -# lock table slots.
    -#max_pred_locks_per_transaction = 64       # min 10
    -                                   # (change requires restart)
    -
    -
    -#------------------------------------------------------------------------------
    -# VERSION/PLATFORM COMPATIBILITY
    -#------------------------------------------------------------------------------
    -
    -# - Previous PostgreSQL Versions -
    -
    -#array_nulls = on
    -#backslash_quote = safe_encoding   # on, off, or safe_encoding
    -#default_with_oids = off
    -#escape_string_warning = on
    -#lo_compat_privileges = off
    -#quote_all_identifiers = off
    -#sql_inheritance = on
    -#standard_conforming_strings = on
    -#synchronize_seqscans = on
    -
    -# - Other Platforms and Clients -
    -
    -#transform_null_equals = off
    -
    -
    -#------------------------------------------------------------------------------
    -# ERROR HANDLING
    -#------------------------------------------------------------------------------
    -
    -#exit_on_error = off                       # terminate session on any error?
    -#restart_after_crash = on          # reinitialize after backend crash?
    -
    -
    -#------------------------------------------------------------------------------
    -# CUSTOMIZED OPTIONS
    -#------------------------------------------------------------------------------
    -
    -# Add settings for extensions here
    +lc_messages = 'en_US.UTF-8'
    +lc_monetary = 'en_US.UTF-8'
    +lc_numeric = 'en_US.UTF-8'
    +lc_time = 'en_US.UTF-8'
    +listen_addresses = 'localhost'
    +log_directory = 'pg_log'
    +log_filename = 'postgresql-%a.log'
    +log_rotation_age = '1d'
    +log_rotation_size = 0
    +log_truncate_on_rotation = on
    +logging_collector = on
    +max_connections = 100
    +port = 5432
    +shared_buffers = '32MB'
Recipe: postgresql::server_redhat
  * service[postgresql] action restart
    - restart service service[postgresql]
Recipe: postgresql::server
  * template[/var/lib/pgsql9/data/pg_hba.conf] action create
    - update content in file /var/lib/pgsql9/data/pg_hba.conf from 8daecd to 1ac5b0
    --- /var/lib/pgsql9/data/pg_hba.conf        2014-08-06 07:19:55.911989875 +0000
    +++ /tmp/chef-rendered-template20140806-1663-h07dtu 2014-08-06 07:20:04.507932555 +0000
    @@ -1,90 +1,25 @@
    +# This file was automatically generated and dropped off by Chef!
    +
     # PostgreSQL Client Authentication Configuration File
     # ===================================================
     #
     # Refer to the "Client Authentication" section in the PostgreSQL
    -# documentation for a complete description of this file.  A short
    -# synopsis follows.
    -#
    -# This file controls: which hosts are allowed to connect, how clients
    -# are authenticated, which PostgreSQL user names they can use, which
    -# databases they can access.  Records take one of these forms:
    -#
    -# local      DATABASE  USER  METHOD  [OPTIONS]
    -# host       DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
    -# hostssl    DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
    -# hostnossl  DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
    -#
    -# (The uppercase items must be replaced by actual values.)
    -#
    -# The first field is the connection type: "local" is a Unix-domain
    -# socket, "host" is either a plain or SSL-encrypted TCP/IP socket,
    -# "hostssl" is an SSL-encrypted TCP/IP socket, and "hostnossl" is a
    -# plain TCP/IP socket.
    -#
    -# DATABASE can be "all", "sameuser", "samerole", "replication", a
    -# database name, or a comma-separated list thereof. The "all"
    -# keyword does not match "replication". Access to replication
    -# must be enabled in a separate record (see example below).
    -#
    -# USER can be "all", a user name, a group name prefixed with "+", or a
    -# comma-separated list thereof.  In both the DATABASE and USER fields
    -# you can also write a file name prefixed with "@" to include names
    -# from a separate file.
    -#
    -# ADDRESS specifies the set of hosts the record matches.  It can be a
    -# host name, or it is made up of an IP address and a CIDR mask that is
    -# an integer (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that
    -# specifies the number of significant bits in the mask.  A host name
    -# that starts with a dot (.) matches a suffix of the actual host name.
    -# Alternatively, you can write an IP address and netmask in separate
    -# columns to specify the set of hosts.  Instead of a CIDR-address, you
    -# can write "samehost" to match any of the server's own IP addresses,
    -# or "samenet" to match any address in any subnet that the server is
    -# directly connected to.
    -#
    -# METHOD can be "trust", "reject", "md5", "password", "gss", "sspi",
    -# "krb5", "ident", "peer", "pam", "ldap", "radius" or "cert".  Note that
    -# "password" sends passwords in clear text; "md5" is preferred since
    -# it sends encrypted passwords.
    -#
    -# OPTIONS are a set of options for the authentication in the format
    -# NAME=VALUE.  The available options depend on the different
    -# authentication methods -- refer to the "Client Authentication"
    -# section in the documentation for a list of which options are
    -# available for which authentication methods.
    -#
    -# Database and user names containing spaces, commas, quotes and other
    -# special characters must be quoted.  Quoting one of the keywords
    -# "all", "sameuser", "samerole" or "replication" makes the name lose
    -# its special character, and just match a database or username with
    -# that name.
    -#
    -# This file is read on server startup and when the postmaster receives
    -# a SIGHUP signal.  If you edit the file on a running system, you have
    -# to SIGHUP the postmaster for the changes to take effect.  You can
    -# use "pg_ctl reload" to do that.
    +# documentation for a complete description of this file.
     
    -# Put your actual configuration here
    -# ----------------------------------
    -#
    -# If you want to allow non-local connections, you need to add more
    -# "host" records.  In that case you will also need to make PostgreSQL
    -# listen on a non-local interface via the listen_addresses
    -# configuration parameter, or via the -i or -h command line switches.
    +# TYPE  DATABASE        USER            CIDR-ADDRESS            METHOD
     
    +###########
    +# Other authentication configurations taken from chef node defaults:
    +###########
     
    +local   all             postgres                                ident
     
    -# TYPE  DATABASE        USER            ADDRESS                 METHOD
    +local   all             all                                     ident
     
    +host    all             all             127.0.0.1/32            md5
    +
    +host    all             all             ::1/128                 md5
    +
     # "local" is for Unix domain socket connections only
    -local   all             all                                     peer
    -# IPv4 local connections:
    -host    all             all             127.0.0.1/32            ident
    -# IPv6 local connections:
    -host    all             all             ::1/128                 ident
    -# Allow replication connections from localhost, by a user with the
    -# replication privilege.
    -#local   replication     postgres                                peer
    -#host    replication     postgres        127.0.0.1/32            ident
    -#host    replication     postgres        ::1/128                 ident
    +local   all             all                                     ident
Recipe: postgresql::server_redhat
  * service[postgresql] action restart
    - restart service service[postgresql]
Recipe: postgresql::server
  * bash[assign-postgres-password] action run
    - execute "bash"  "/tmp/chef-script20140806-1663-1l0j7z2"
Recipe: postgresql::server_redhat
  * service[postgresql] action restart
    - restart service service[postgresql]

Running handlers:
Running handlers complete
Chef Client finished, 17/21 resources updated in 23.96606356 seconds
Running tests to confirm postgresql is installed, running and activated
spec/chef-node01/postgres_spec.rb
require 'spec_helper'

describe package('postgresql9') do
  it { should be_installed }
end

describe service('postgresql') do
  it { should be_enabled   }
  it { should be_running   }
end

describe user('postgres') do
  it { should exist }
end

describe port(5432) do
  it { should be_listening }
end

describe file('/var/lib/pgsql9/data/postgresql.conf') do
  it { should be_file }
end


$ rspec spec/chef-node01/postgres_spec.rb 

Package "postgresql9"
  should be installed

Service "postgresql"
  should be enabled
  should be running

User "postgres"
  should exist []

Port "5432"
  should be listening

File "/var/lib/pgsql9/data/postgresql.conf"
  should be file

Finished in 0.34722 seconds
6 examples, 0 failures

I should try attributes to use host specific properties next.


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