Merge pull request #893 from davide125/getconf

Add sysconf plugin to expose system configuration variables

2 files changed, 724 insertions, 0 deletions

diff --git a/lib/ohai/plugins/sysconf.rb b/lib/ohai/plugins/sysconf.rb
new file mode 100644
index 00000000..c2deee96
--- /dev/null
+++ b/lib/ohai/plugins/sysconf.rb
@@ -0,0 +1,45 @@
+#
+# Author:: Davide Cavalca <dcavalca@fb.com>
+# Copyright:: Copyright (c) 2016 Facebook
+# License:: Apache License, Version 2.0
+#
+# 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.
+#
+
+Ohai.plugin(:Sysconf) do
+  provides "sysconf"
+
+  collect_data(:aix, :linux, :solaris2) do
+    getconf_path = which("getconf")
+    if getconf_path
+      getconf = shell_out("#{getconf_path} -a")
+
+      if getconf.exitstatus == 0
+        sysconf Mash.new unless sysconf
+
+        getconf.stdout.split("\n").each do |line|
+          key, val = /^(\S+)\s*(.*)?$/.match(line).captures
+          if val && !val.empty?
+            begin
+              sysconf[key] = Integer(val)
+            rescue
+              sysconf[key] = val
+            end
+          else
+            sysconf[key] = nil
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/unit/plugins/sysconf_spec.rb b/spec/unit/plugins/sysconf_spec.rb
new file mode 100644
index 00000000..e2f6f361
--- /dev/null
+++ b/spec/unit/plugins/sysconf_spec.rb
@@ -0,0 +1,679 @@
+#
+# Author:: Davide Cavalca <dcavalca@fb.com>
+# Copyright:: Copyright (c) 2016 Facebook
+# License:: Apache License, Version 2.0
+#
+# 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.
+#
+
+require File.expand_path(File.dirname(__FILE__) + "/../../spec_helper.rb")
+
+describe Ohai::System, "sysconf plugin", :unix_only do
+  let(:plugin) { get_plugin("sysconf") }
+
+  it "should populate sysconf if getconf is found" do
+    getconf_out = <<-GETCONF_OUT
+LINK_MAX                           65000
+_POSIX_LINK_MAX                    65000
+MAX_CANON                          255
+_POSIX_MAX_CANON                   255
+MAX_INPUT                          255
+_POSIX_MAX_INPUT                   255
+NAME_MAX                           255
+_POSIX_NAME_MAX                    255
+PATH_MAX                           4096
+_POSIX_PATH_MAX                    4096
+PIPE_BUF                           4096
+_POSIX_PIPE_BUF                    4096
+SOCK_MAXBUF
+_POSIX_ASYNC_IO
+_POSIX_CHOWN_RESTRICTED            1
+_POSIX_NO_TRUNC                    1
+_POSIX_PRIO_IO
+_POSIX_SYNC_IO
+_POSIX_VDISABLE                    0
+ARG_MAX                            2097152
+ATEXIT_MAX                         2147483647
+CHAR_BIT                           8
+CHAR_MAX                           127
+CHAR_MIN                           -128
+CHILD_MAX                          63672
+CLK_TCK                            100
+INT_MAX                            2147483647
+INT_MIN                            -2147483648
+IOV_MAX                            1024
+LOGNAME_MAX                        256
+LONG_BIT                           64
+MB_LEN_MAX                         16
+NGROUPS_MAX                        65536
+NL_ARGMAX                          4096
+NL_LANGMAX                         2048
+NL_MSGMAX                          2147483647
+NL_NMAX                            2147483647
+NL_SETMAX                          2147483647
+NL_TEXTMAX                         2147483647
+NSS_BUFLEN_GROUP                   1024
+NSS_BUFLEN_PASSWD                  1024
+NZERO                              20
+OPEN_MAX                           1024
+PAGESIZE                           4096
+PAGE_SIZE                          4096
+PASS_MAX                           8192
+PTHREAD_DESTRUCTOR_ITERATIONS      4
+PTHREAD_KEYS_MAX                   1024
+PTHREAD_STACK_MIN                  16384
+PTHREAD_THREADS_MAX
+SCHAR_MAX                          127
+SCHAR_MIN                          -128
+SHRT_MAX                           32767
+SHRT_MIN                           -32768
+SSIZE_MAX                          32767
+TTY_NAME_MAX                       32
+TZNAME_MAX                         6
+UCHAR_MAX                          255
+UINT_MAX                           4294967295
+UIO_MAXIOV                         1024
+ULONG_MAX                          18446744073709551615
+USHRT_MAX                          65535
+WORD_BIT                           32
+_AVPHYS_PAGES                      2101393
+_NPROCESSORS_CONF                  8
+_NPROCESSORS_ONLN                  8
+_PHYS_PAGES                        4096040
+_POSIX_ARG_MAX                     2097152
+_POSIX_ASYNCHRONOUS_IO             200809
+_POSIX_CHILD_MAX                   63672
+_POSIX_FSYNC                       200809
+_POSIX_JOB_CONTROL                 1
+_POSIX_MAPPED_FILES                200809
+_POSIX_MEMLOCK                     200809
+_POSIX_MEMLOCK_RANGE               200809
+_POSIX_MEMORY_PROTECTION           200809
+_POSIX_MESSAGE_PASSING             200809
+_POSIX_NGROUPS_MAX                 65536
+_POSIX_OPEN_MAX                    1024
+_POSIX_PII
+_POSIX_PII_INTERNET
+_POSIX_PII_INTERNET_DGRAM
+_POSIX_PII_INTERNET_STREAM
+_POSIX_PII_OSI
+_POSIX_PII_OSI_CLTS
+_POSIX_PII_OSI_COTS
+_POSIX_PII_OSI_M
+_POSIX_PII_SOCKET
+_POSIX_PII_XTI
+_POSIX_POLL
+_POSIX_PRIORITIZED_IO              200809
+_POSIX_PRIORITY_SCHEDULING         200809
+_POSIX_REALTIME_SIGNALS            200809
+_POSIX_SAVED_IDS                   1
+_POSIX_SELECT
+_POSIX_SEMAPHORES                  200809
+_POSIX_SHARED_MEMORY_OBJECTS       200809
+_POSIX_SSIZE_MAX                   32767
+_POSIX_STREAM_MAX                  16
+_POSIX_SYNCHRONIZED_IO             200809
+_POSIX_THREADS                     200809
+_POSIX_THREAD_ATTR_STACKADDR       200809
+_POSIX_THREAD_ATTR_STACKSIZE       200809
+_POSIX_THREAD_PRIORITY_SCHEDULING  200809
+_POSIX_THREAD_PRIO_INHERIT         200809
+_POSIX_THREAD_PRIO_PROTECT         200809
+_POSIX_THREAD_ROBUST_PRIO_INHERIT
+_POSIX_THREAD_ROBUST_PRIO_PROTECT
+_POSIX_THREAD_PROCESS_SHARED       200809
+_POSIX_THREAD_SAFE_FUNCTIONS       200809
+_POSIX_TIMERS                      200809
+TIMER_MAX
+_POSIX_TZNAME_MAX                  6
+_POSIX_VERSION                     200809
+_T_IOV_MAX
+_XOPEN_CRYPT                       1
+_XOPEN_ENH_I18N                    1
+_XOPEN_LEGACY                      1
+_XOPEN_REALTIME                    1
+_XOPEN_REALTIME_THREADS            1
+_XOPEN_SHM                         1
+_XOPEN_UNIX                        1
+_XOPEN_VERSION                     700
+_XOPEN_XCU_VERSION                 4
+_XOPEN_XPG2                        1
+_XOPEN_XPG3                        1
+_XOPEN_XPG4                        1
+BC_BASE_MAX                        99
+BC_DIM_MAX                         2048
+BC_SCALE_MAX                       99
+BC_STRING_MAX                      1000
+CHARCLASS_NAME_MAX                 2048
+COLL_WEIGHTS_MAX                   255
+EQUIV_CLASS_MAX
+EXPR_NEST_MAX                      32
+LINE_MAX                           2048
+POSIX2_BC_BASE_MAX                 99
+POSIX2_BC_DIM_MAX                  2048
+POSIX2_BC_SCALE_MAX                99
+POSIX2_BC_STRING_MAX               1000
+POSIX2_CHAR_TERM                   200809
+POSIX2_COLL_WEIGHTS_MAX            255
+POSIX2_C_BIND                      200809
+POSIX2_C_DEV                       200809
+POSIX2_C_VERSION                   200809
+POSIX2_EXPR_NEST_MAX               32
+POSIX2_FORT_DEV
+POSIX2_FORT_RUN
+_POSIX2_LINE_MAX                   2048
+POSIX2_LINE_MAX                    2048
+POSIX2_LOCALEDEF                   200809
+POSIX2_RE_DUP_MAX                  32767
+POSIX2_SW_DEV                      200809
+POSIX2_UPE
+POSIX2_VERSION                     200809
+RE_DUP_MAX                         32767
+PATH                               /bin:/usr/bin
+CS_PATH                            /bin:/usr/bin
+LFS_CFLAGS
+LFS_LDFLAGS
+LFS_LIBS
+LFS_LINTFLAGS
+LFS64_CFLAGS                       -D_LARGEFILE64_SOURCE
+LFS64_LDFLAGS
+LFS64_LIBS
+LFS64_LINTFLAGS                    -D_LARGEFILE64_SOURCE
+_XBS5_WIDTH_RESTRICTED_ENVS        XBS5_LP64_OFF64
+XBS5_WIDTH_RESTRICTED_ENVS         XBS5_LP64_OFF64
+_XBS5_ILP32_OFF32
+XBS5_ILP32_OFF32_CFLAGS
+XBS5_ILP32_OFF32_LDFLAGS
+XBS5_ILP32_OFF32_LIBS
+XBS5_ILP32_OFF32_LINTFLAGS
+_XBS5_ILP32_OFFBIG
+XBS5_ILP32_OFFBIG_CFLAGS
+XBS5_ILP32_OFFBIG_LDFLAGS
+XBS5_ILP32_OFFBIG_LIBS
+XBS5_ILP32_OFFBIG_LINTFLAGS
+_XBS5_LP64_OFF64                   1
+XBS5_LP64_OFF64_CFLAGS             -m64
+XBS5_LP64_OFF64_LDFLAGS            -m64
+XBS5_LP64_OFF64_LIBS
+XBS5_LP64_OFF64_LINTFLAGS
+_XBS5_LPBIG_OFFBIG
+XBS5_LPBIG_OFFBIG_CFLAGS
+XBS5_LPBIG_OFFBIG_LDFLAGS
+XBS5_LPBIG_OFFBIG_LIBS
+XBS5_LPBIG_OFFBIG_LINTFLAGS
+_POSIX_V6_ILP32_OFF32
+POSIX_V6_ILP32_OFF32_CFLAGS
+POSIX_V6_ILP32_OFF32_LDFLAGS
+POSIX_V6_ILP32_OFF32_LIBS
+POSIX_V6_ILP32_OFF32_LINTFLAGS
+_POSIX_V6_WIDTH_RESTRICTED_ENVS    POSIX_V6_LP64_OFF64
+POSIX_V6_WIDTH_RESTRICTED_ENVS     POSIX_V6_LP64_OFF64
+_POSIX_V6_ILP32_OFFBIG
+POSIX_V6_ILP32_OFFBIG_CFLAGS
+POSIX_V6_ILP32_OFFBIG_LDFLAGS
+POSIX_V6_ILP32_OFFBIG_LIBS
+POSIX_V6_ILP32_OFFBIG_LINTFLAGS
+_POSIX_V6_LP64_OFF64               1
+POSIX_V6_LP64_OFF64_CFLAGS         -m64
+POSIX_V6_LP64_OFF64_LDFLAGS        -m64
+POSIX_V6_LP64_OFF64_LIBS
+POSIX_V6_LP64_OFF64_LINTFLAGS
+_POSIX_V6_LPBIG_OFFBIG
+POSIX_V6_LPBIG_OFFBIG_CFLAGS
+POSIX_V6_LPBIG_OFFBIG_LDFLAGS
+POSIX_V6_LPBIG_OFFBIG_LIBS
+POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
+_POSIX_V7_ILP32_OFF32
+POSIX_V7_ILP32_OFF32_CFLAGS
+POSIX_V7_ILP32_OFF32_LDFLAGS
+POSIX_V7_ILP32_OFF32_LIBS
+POSIX_V7_ILP32_OFF32_LINTFLAGS
+_POSIX_V7_WIDTH_RESTRICTED_ENVS    POSIX_V7_LP64_OFF64
+POSIX_V7_WIDTH_RESTRICTED_ENVS     POSIX_V7_LP64_OFF64
+_POSIX_V7_ILP32_OFFBIG
+POSIX_V7_ILP32_OFFBIG_CFLAGS
+POSIX_V7_ILP32_OFFBIG_LDFLAGS
+POSIX_V7_ILP32_OFFBIG_LIBS
+POSIX_V7_ILP32_OFFBIG_LINTFLAGS
+_POSIX_V7_LP64_OFF64               1
+POSIX_V7_LP64_OFF64_CFLAGS         -m64
+POSIX_V7_LP64_OFF64_LDFLAGS        -m64
+POSIX_V7_LP64_OFF64_LIBS
+POSIX_V7_LP64_OFF64_LINTFLAGS
+_POSIX_V7_LPBIG_OFFBIG
+POSIX_V7_LPBIG_OFFBIG_CFLAGS
+POSIX_V7_LPBIG_OFFBIG_LDFLAGS
+POSIX_V7_LPBIG_OFFBIG_LIBS
+POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
+_POSIX_ADVISORY_INFO               200809
+_POSIX_BARRIERS                    200809
+_POSIX_BASE
+_POSIX_C_LANG_SUPPORT
+_POSIX_C_LANG_SUPPORT_R
+_POSIX_CLOCK_SELECTION             200809
+_POSIX_CPUTIME                     200809
+_POSIX_THREAD_CPUTIME              200809
+_POSIX_DEVICE_SPECIFIC
+_POSIX_DEVICE_SPECIFIC_R
+_POSIX_FD_MGMT
+_POSIX_FIFO
+_POSIX_PIPE
+_POSIX_FILE_ATTRIBUTES
+_POSIX_FILE_LOCKING
+_POSIX_FILE_SYSTEM
+_POSIX_MONOTONIC_CLOCK             200809
+_POSIX_MULTI_PROCESS
+_POSIX_SINGLE_PROCESS
+_POSIX_NETWORKING
+_POSIX_READER_WRITER_LOCKS         200809
+_POSIX_SPIN_LOCKS                  200809
+_POSIX_REGEXP                      1
+_REGEX_VERSION
+_POSIX_SHELL                       1
+_POSIX_SIGNALS
+_POSIX_SPAWN                       200809
+_POSIX_SPORADIC_SERVER
+_POSIX_THREAD_SPORADIC_SERVER
+_POSIX_SYSTEM_DATABASE
+_POSIX_SYSTEM_DATABASE_R
+_POSIX_TIMEOUTS                    200809
+_POSIX_TYPED_MEMORY_OBJECTS
+_POSIX_USER_GROUPS
+_POSIX_USER_GROUPS_R
+POSIX2_PBS
+POSIX2_PBS_ACCOUNTING
+POSIX2_PBS_LOCATE
+POSIX2_PBS_TRACK
+POSIX2_PBS_MESSAGE
+SYMLOOP_MAX
+STREAM_MAX                         16
+AIO_LISTIO_MAX
+AIO_MAX
+AIO_PRIO_DELTA_MAX                 20
+DELAYTIMER_MAX                     2147483647
+HOST_NAME_MAX                      64
+LOGIN_NAME_MAX                     256
+MQ_OPEN_MAX
+MQ_PRIO_MAX                        32768
+_POSIX_DEVICE_IO
+_POSIX_TRACE
+_POSIX_TRACE_EVENT_FILTER
+_POSIX_TRACE_INHERIT
+_POSIX_TRACE_LOG
+RTSIG_MAX                          32
+SEM_NSEMS_MAX
+SEM_VALUE_MAX                      2147483647
+SIGQUEUE_MAX                       63672
+FILESIZEBITS                       64
+POSIX_ALLOC_SIZE_MIN               4096
+POSIX_REC_INCR_XFER_SIZE
+POSIX_REC_MAX_XFER_SIZE
+POSIX_REC_MIN_XFER_SIZE            4096
+POSIX_REC_XFER_ALIGN               4096
+SYMLINK_MAX
+GNU_LIBC_VERSION                   glibc 2.24
+GNU_LIBPTHREAD_VERSION             NPTL 2.24
+POSIX2_SYMLINKS                    1
+LEVEL1_ICACHE_SIZE                 32768
+LEVEL1_ICACHE_ASSOC                8
+LEVEL1_ICACHE_LINESIZE             64
+LEVEL1_DCACHE_SIZE                 32768
+LEVEL1_DCACHE_ASSOC                8
+LEVEL1_DCACHE_LINESIZE             64
+LEVEL2_CACHE_SIZE                  262144
+LEVEL2_CACHE_ASSOC                 4
+LEVEL2_CACHE_LINESIZE              64
+LEVEL3_CACHE_SIZE                  8388608
+LEVEL3_CACHE_ASSOC                 16
+LEVEL3_CACHE_LINESIZE              64
+LEVEL4_CACHE_SIZE                  0
+LEVEL4_CACHE_ASSOC                 0
+LEVEL4_CACHE_LINESIZE              0
+IPV6                               200809
+RAW_SOCKETS                        200809
+_POSIX_IPV6                        200809
+_POSIX_RAW_SOCKETS                 200809
+GETCONF_OUT
+    allow(plugin).to receive(:which).with("getconf").and_return("/usr/bin/getconf")
+    allow(plugin).to receive(:shell_out).with("/usr/bin/getconf -a").and_return(mock_shell_out(0, getconf_out, ""))
+    plugin.run
+    expect(plugin[:sysconf].to_hash).to eq({
+      "LINK_MAX" => 65000,
+      "_POSIX_LINK_MAX" => 65000,
+      "MAX_CANON" => 255,
+      "_POSIX_MAX_CANON" => 255,
+      "MAX_INPUT" => 255,
+      "_POSIX_MAX_INPUT" => 255,
+      "NAME_MAX" => 255,
+      "_POSIX_NAME_MAX" => 255,
+      "PATH_MAX" => 4096,
+      "_POSIX_PATH_MAX" => 4096,
+      "PIPE_BUF" => 4096,
+      "_POSIX_PIPE_BUF" => 4096,
+      "SOCK_MAXBUF" => nil,
+      "_POSIX_ASYNC_IO" => nil,
+      "_POSIX_CHOWN_RESTRICTED" => 1,
+      "_POSIX_NO_TRUNC" => 1,
+      "_POSIX_PRIO_IO" => nil,
+      "_POSIX_SYNC_IO" => nil,
+      "_POSIX_VDISABLE" => 0,
+      "ARG_MAX" => 2097152,
+      "ATEXIT_MAX" => 2147483647,
+      "CHAR_BIT" => 8,
+      "CHAR_MAX" => 127,
+      "CHAR_MIN" => -128,
+      "CHILD_MAX" => 63672,
+      "CLK_TCK" => 100,
+      "INT_MAX" => 2147483647,
+      "INT_MIN" => -2147483648,
+      "IOV_MAX" => 1024,
+      "LOGNAME_MAX" => 256,
+      "LONG_BIT" => 64,
+      "MB_LEN_MAX" => 16,
+      "NGROUPS_MAX" => 65536,
+      "NL_ARGMAX" => 4096,
+      "NL_LANGMAX" => 2048,
+      "NL_MSGMAX" => 2147483647,
+      "NL_NMAX" => 2147483647,
+      "NL_SETMAX" => 2147483647,
+      "NL_TEXTMAX" => 2147483647,
+      "NSS_BUFLEN_GROUP" => 1024,
+      "NSS_BUFLEN_PASSWD" => 1024,
+      "NZERO" => 20,
+      "OPEN_MAX" => 1024,
+      "PAGESIZE" => 4096,
+      "PAGE_SIZE" => 4096,
+      "PASS_MAX" => 8192,
+      "PTHREAD_DESTRUCTOR_ITERATIONS" => 4,
+      "PTHREAD_KEYS_MAX" => 1024,
+      "PTHREAD_STACK_MIN" => 16384,
+      "PTHREAD_THREADS_MAX" => nil,
+      "SCHAR_MAX" => 127,
+      "SCHAR_MIN" => -128,
+      "SHRT_MAX" => 32767,
+      "SHRT_MIN" => -32768,
+      "SSIZE_MAX" => 32767,
+      "TTY_NAME_MAX" => 32,
+      "TZNAME_MAX" => 6,
+      "UCHAR_MAX" => 255,
+      "UINT_MAX" => 4294967295,
+      "UIO_MAXIOV" => 1024,
+      "ULONG_MAX" => 18446744073709551615,
+      "USHRT_MAX" => 65535,
+      "WORD_BIT" => 32,
+      "_AVPHYS_PAGES" => 2101393,
+      "_NPROCESSORS_CONF" => 8,
+      "_NPROCESSORS_ONLN" => 8,
+      "_PHYS_PAGES" => 4096040,
+      "_POSIX_ARG_MAX" => 2097152,
+      "_POSIX_ASYNCHRONOUS_IO" => 200809,
+      "_POSIX_CHILD_MAX" => 63672,
+      "_POSIX_FSYNC" => 200809,
+      "_POSIX_JOB_CONTROL" => 1,
+      "_POSIX_MAPPED_FILES" => 200809,
+      "_POSIX_MEMLOCK" => 200809,
+      "_POSIX_MEMLOCK_RANGE" => 200809,
+      "_POSIX_MEMORY_PROTECTION" => 200809,
+      "_POSIX_MESSAGE_PASSING" => 200809,
+      "_POSIX_NGROUPS_MAX" => 65536,
+      "_POSIX_OPEN_MAX" => 1024,
+      "_POSIX_PII" => nil,
+      "_POSIX_PII_INTERNET" => nil,
+      "_POSIX_PII_INTERNET_DGRAM" => nil,
+      "_POSIX_PII_INTERNET_STREAM" => nil,
+      "_POSIX_PII_OSI" => nil,
+      "_POSIX_PII_OSI_CLTS" => nil,
+      "_POSIX_PII_OSI_COTS" => nil,
+      "_POSIX_PII_OSI_M" => nil,
+      "_POSIX_PII_SOCKET" => nil,
+      "_POSIX_PII_XTI" => nil,
+      "_POSIX_POLL" => nil,
+      "_POSIX_PRIORITIZED_IO" => 200809,
+      "_POSIX_PRIORITY_SCHEDULING" => 200809,
+      "_POSIX_REALTIME_SIGNALS" => 200809,
+      "_POSIX_SAVED_IDS" => 1,
+      "_POSIX_SELECT" => nil,
+      "_POSIX_SEMAPHORES" => 200809,
+      "_POSIX_SHARED_MEMORY_OBJECTS" => 200809,
+      "_POSIX_SSIZE_MAX" => 32767,
+      "_POSIX_STREAM_MAX" => 16,
+      "_POSIX_SYNCHRONIZED_IO" => 200809,
+      "_POSIX_THREADS" => 200809,
+      "_POSIX_THREAD_ATTR_STACKADDR" => 200809,
+      "_POSIX_THREAD_ATTR_STACKSIZE" => 200809,
+      "_POSIX_THREAD_PRIORITY_SCHEDULING" => 200809,
+      "_POSIX_THREAD_PRIO_INHERIT" => 200809,
+      "_POSIX_THREAD_PRIO_PROTECT" => 200809,
+      "_POSIX_THREAD_ROBUST_PRIO_INHERIT" => nil,
+      "_POSIX_THREAD_ROBUST_PRIO_PROTECT" => nil,
+      "_POSIX_THREAD_PROCESS_SHARED" => 200809,
+      "_POSIX_THREAD_SAFE_FUNCTIONS" => 200809,
+      "_POSIX_TIMERS" => 200809,
+      "TIMER_MAX" => nil,
+      "_POSIX_TZNAME_MAX" => 6,
+      "_POSIX_VERSION" => 200809,
+      "_T_IOV_MAX" => nil,
+      "_XOPEN_CRYPT" => 1,
+      "_XOPEN_ENH_I18N" => 1,
+      "_XOPEN_LEGACY" => 1,
+      "_XOPEN_REALTIME" => 1,
+      "_XOPEN_REALTIME_THREADS" => 1,
+      "_XOPEN_SHM" => 1,
+      "_XOPEN_UNIX" => 1,
+      "_XOPEN_VERSION" => 700,
+      "_XOPEN_XCU_VERSION" => 4,
+      "_XOPEN_XPG2" => 1,
+      "_XOPEN_XPG3" => 1,
+      "_XOPEN_XPG4" => 1,
+      "BC_BASE_MAX" => 99,
+      "BC_DIM_MAX" => 2048,
+      "BC_SCALE_MAX" => 99,
+      "BC_STRING_MAX" => 1000,
+      "CHARCLASS_NAME_MAX" => 2048,
+      "COLL_WEIGHTS_MAX" => 255,
+      "EQUIV_CLASS_MAX" => nil,
+      "EXPR_NEST_MAX" => 32,
+      "LINE_MAX" => 2048,
+      "POSIX2_BC_BASE_MAX" => 99,
+      "POSIX2_BC_DIM_MAX" => 2048,
+      "POSIX2_BC_SCALE_MAX" => 99,
+      "POSIX2_BC_STRING_MAX" => 1000,
+      "POSIX2_CHAR_TERM" => 200809,
+      "POSIX2_COLL_WEIGHTS_MAX" => 255,
+      "POSIX2_C_BIND" => 200809,
+      "POSIX2_C_DEV" => 200809,
+      "POSIX2_C_VERSION" => 200809,
+      "POSIX2_EXPR_NEST_MAX" => 32,
+      "POSIX2_FORT_DEV" => nil,
+      "POSIX2_FORT_RUN" => nil,
+      "_POSIX2_LINE_MAX" => 2048,
+      "POSIX2_LINE_MAX" => 2048,
+      "POSIX2_LOCALEDEF" => 200809,
+      "POSIX2_RE_DUP_MAX" => 32767,
+      "POSIX2_SW_DEV" => 200809,
+      "POSIX2_UPE" => nil,
+      "POSIX2_VERSION" => 200809,
+      "RE_DUP_MAX" => 32767,
+      "PATH" => "/bin:/usr/bin",
+      "CS_PATH" => "/bin:/usr/bin",
+      "LFS_CFLAGS" => nil,
+      "LFS_LDFLAGS" => nil,
+      "LFS_LIBS" => nil,
+      "LFS_LINTFLAGS" => nil,
+      "LFS64_CFLAGS" => "-D_LARGEFILE64_SOURCE",
+      "LFS64_LDFLAGS" => nil,
+      "LFS64_LIBS" => nil,
+      "LFS64_LINTFLAGS" => "-D_LARGEFILE64_SOURCE",
+      "_XBS5_WIDTH_RESTRICTED_ENVS" => "XBS5_LP64_OFF64",
+      "XBS5_WIDTH_RESTRICTED_ENVS" => "XBS5_LP64_OFF64",
+      "_XBS5_ILP32_OFF32" => nil,
+      "XBS5_ILP32_OFF32_CFLAGS" => nil,
+      "XBS5_ILP32_OFF32_LDFLAGS" => nil,
+      "XBS5_ILP32_OFF32_LIBS" => nil,
+      "XBS5_ILP32_OFF32_LINTFLAGS" => nil,
+      "_XBS5_ILP32_OFFBIG" => nil,
+      "XBS5_ILP32_OFFBIG_CFLAGS" => nil,
+      "XBS5_ILP32_OFFBIG_LDFLAGS" => nil,
+      "XBS5_ILP32_OFFBIG_LIBS" => nil,
+      "XBS5_ILP32_OFFBIG_LINTFLAGS" => nil,
+      "_XBS5_LP64_OFF64" => 1,
+      "XBS5_LP64_OFF64_CFLAGS" => "-m64",
+      "XBS5_LP64_OFF64_LDFLAGS" => "-m64",
+      "XBS5_LP64_OFF64_LIBS" => nil,
+      "XBS5_LP64_OFF64_LINTFLAGS" => nil,
+      "_XBS5_LPBIG_OFFBIG" => nil,
+      "XBS5_LPBIG_OFFBIG_CFLAGS" => nil,
+      "XBS5_LPBIG_OFFBIG_LDFLAGS" => nil,
+      "XBS5_LPBIG_OFFBIG_LIBS" => nil,
+      "XBS5_LPBIG_OFFBIG_LINTFLAGS" => nil,
+      "_POSIX_V6_ILP32_OFF32" => nil,
+      "POSIX_V6_ILP32_OFF32_CFLAGS" => nil,
+      "POSIX_V6_ILP32_OFF32_LDFLAGS" => nil,
+      "POSIX_V6_ILP32_OFF32_LIBS" => nil,
+      "POSIX_V6_ILP32_OFF32_LINTFLAGS" => nil,
+      "_POSIX_V6_WIDTH_RESTRICTED_ENVS" => "POSIX_V6_LP64_OFF64",
+      "POSIX_V6_WIDTH_RESTRICTED_ENVS" => "POSIX_V6_LP64_OFF64",
+      "_POSIX_V6_ILP32_OFFBIG" => nil,
+      "POSIX_V6_ILP32_OFFBIG_CFLAGS" => nil,
+      "POSIX_V6_ILP32_OFFBIG_LDFLAGS" => nil,
+      "POSIX_V6_ILP32_OFFBIG_LIBS" => nil,
+      "POSIX_V6_ILP32_OFFBIG_LINTFLAGS" => nil,
+      "_POSIX_V6_LP64_OFF64" => 1,
+      "POSIX_V6_LP64_OFF64_CFLAGS" => "-m64",
+      "POSIX_V6_LP64_OFF64_LDFLAGS" => "-m64",
+      "POSIX_V6_LP64_OFF64_LIBS" => nil,
+      "POSIX_V6_LP64_OFF64_LINTFLAGS" => nil,
+      "_POSIX_V6_LPBIG_OFFBIG" => nil,
+      "POSIX_V6_LPBIG_OFFBIG_CFLAGS" => nil,
+      "POSIX_V6_LPBIG_OFFBIG_LDFLAGS" => nil,
+      "POSIX_V6_LPBIG_OFFBIG_LIBS" => nil,
+      "POSIX_V6_LPBIG_OFFBIG_LINTFLAGS" => nil,
+      "_POSIX_V7_ILP32_OFF32" => nil,
+      "POSIX_V7_ILP32_OFF32_CFLAGS" => nil,
+      "POSIX_V7_ILP32_OFF32_LDFLAGS" => nil,
+      "POSIX_V7_ILP32_OFF32_LIBS" => nil,
+      "POSIX_V7_ILP32_OFF32_LINTFLAGS" => nil,
+      "_POSIX_V7_WIDTH_RESTRICTED_ENVS" => "POSIX_V7_LP64_OFF64",
+      "POSIX_V7_WIDTH_RESTRICTED_ENVS" => "POSIX_V7_LP64_OFF64",
+      "_POSIX_V7_ILP32_OFFBIG" => nil,
+      "POSIX_V7_ILP32_OFFBIG_CFLAGS" => nil,
+      "POSIX_V7_ILP32_OFFBIG_LDFLAGS" => nil,
+      "POSIX_V7_ILP32_OFFBIG_LIBS" => nil,
+      "POSIX_V7_ILP32_OFFBIG_LINTFLAGS" => nil,
+      "_POSIX_V7_LP64_OFF64" => 1,
+      "POSIX_V7_LP64_OFF64_CFLAGS" => "-m64",
+      "POSIX_V7_LP64_OFF64_LDFLAGS" => "-m64",
+      "POSIX_V7_LP64_OFF64_LIBS" => nil,
+      "POSIX_V7_LP64_OFF64_LINTFLAGS" => nil,
+      "_POSIX_V7_LPBIG_OFFBIG" => nil,
+      "POSIX_V7_LPBIG_OFFBIG_CFLAGS" => nil,
+      "POSIX_V7_LPBIG_OFFBIG_LDFLAGS" => nil,
+      "POSIX_V7_LPBIG_OFFBIG_LIBS" => nil,
+      "POSIX_V7_LPBIG_OFFBIG_LINTFLAGS" => nil,
+      "_POSIX_ADVISORY_INFO" => 200809,
+      "_POSIX_BARRIERS" => 200809,
+      "_POSIX_BASE" => nil,
+      "_POSIX_C_LANG_SUPPORT" => nil,
+      "_POSIX_C_LANG_SUPPORT_R" => nil,
+      "_POSIX_CLOCK_SELECTION" => 200809,
+      "_POSIX_CPUTIME" => 200809,
+      "_POSIX_THREAD_CPUTIME" => 200809,
+      "_POSIX_DEVICE_SPECIFIC" => nil,
+      "_POSIX_DEVICE_SPECIFIC_R" => nil,
+      "_POSIX_FD_MGMT" => nil,
+      "_POSIX_FIFO" => nil,
+      "_POSIX_PIPE" => nil,
+      "_POSIX_FILE_ATTRIBUTES" => nil,
+      "_POSIX_FILE_LOCKING" => nil,
+      "_POSIX_FILE_SYSTEM" => nil,
+      "_POSIX_MONOTONIC_CLOCK" => 200809,
+      "_POSIX_MULTI_PROCESS" => nil,
+      "_POSIX_SINGLE_PROCESS" => nil,
+      "_POSIX_NETWORKING" => nil,
+      "_POSIX_READER_WRITER_LOCKS" => 200809,
+      "_POSIX_SPIN_LOCKS" => 200809,
+      "_POSIX_REGEXP" => 1,
+      "_REGEX_VERSION" => nil,
+      "_POSIX_SHELL" => 1,
+      "_POSIX_SIGNALS" => nil,
+      "_POSIX_SPAWN" => 200809,
+      "_POSIX_SPORADIC_SERVER" => nil,
+      "_POSIX_THREAD_SPORADIC_SERVER" => nil,
+      "_POSIX_SYSTEM_DATABASE" => nil,
+      "_POSIX_SYSTEM_DATABASE_R" => nil,
+      "_POSIX_TIMEOUTS" => 200809,
+      "_POSIX_TYPED_MEMORY_OBJECTS" => nil,
+      "_POSIX_USER_GROUPS" => nil,
+      "_POSIX_USER_GROUPS_R" => nil,
+      "POSIX2_PBS" => nil,
+      "POSIX2_PBS_ACCOUNTING" => nil,
+      "POSIX2_PBS_LOCATE" => nil,
+      "POSIX2_PBS_TRACK" => nil,
+      "POSIX2_PBS_MESSAGE" => nil,
+      "SYMLOOP_MAX" => nil,
+      "STREAM_MAX" => 16,
+      "AIO_LISTIO_MAX" => nil,
+      "AIO_MAX" => nil,
+      "AIO_PRIO_DELTA_MAX" => 20,
+      "DELAYTIMER_MAX" => 2147483647,
+      "HOST_NAME_MAX" => 64,
+      "LOGIN_NAME_MAX" => 256,
+      "MQ_OPEN_MAX" => nil,
+      "MQ_PRIO_MAX" => 32768,
+      "_POSIX_DEVICE_IO" => nil,
+      "_POSIX_TRACE" => nil,
+      "_POSIX_TRACE_EVENT_FILTER" => nil,
+      "_POSIX_TRACE_INHERIT" => nil,
+      "_POSIX_TRACE_LOG" => nil,
+      "RTSIG_MAX" => 32,
+      "SEM_NSEMS_MAX" => nil,
+      "SEM_VALUE_MAX" => 2147483647,
+      "SIGQUEUE_MAX" => 63672,
+      "FILESIZEBITS" => 64,
+      "POSIX_ALLOC_SIZE_MIN" => 4096,
+      "POSIX_REC_INCR_XFER_SIZE" => nil,
+      "POSIX_REC_MAX_XFER_SIZE" => nil,
+      "POSIX_REC_MIN_XFER_SIZE" => 4096,
+      "POSIX_REC_XFER_ALIGN" => 4096,
+      "SYMLINK_MAX" => nil,
+      "GNU_LIBC_VERSION" => "glibc 2.24",
+      "GNU_LIBPTHREAD_VERSION" => "NPTL 2.24",
+      "POSIX2_SYMLINKS" => 1,
+      "LEVEL1_ICACHE_SIZE" => 32768,
+      "LEVEL1_ICACHE_ASSOC" => 8,
+      "LEVEL1_ICACHE_LINESIZE" => 64,
+      "LEVEL1_DCACHE_SIZE" => 32768,
+      "LEVEL1_DCACHE_ASSOC" => 8,
+      "LEVEL1_DCACHE_LINESIZE" => 64,
+      "LEVEL2_CACHE_SIZE" => 262144,
+      "LEVEL2_CACHE_ASSOC" => 4,
+      "LEVEL2_CACHE_LINESIZE" => 64,
+      "LEVEL3_CACHE_SIZE" => 8388608,
+      "LEVEL3_CACHE_ASSOC" => 16,
+      "LEVEL3_CACHE_LINESIZE" => 64,
+      "LEVEL4_CACHE_SIZE" => 0,
+      "LEVEL4_CACHE_ASSOC" => 0,
+      "LEVEL4_CACHE_LINESIZE" => 0,
+      "IPV6" => 200809,
+      "RAW_SOCKETS" => 200809,
+      "_POSIX_IPV6" => 200809,
+      "_POSIX_RAW_SOCKETS" => 200809,
+    })
+  end
+
+  it "should not populate sysconf if getconf is not found" do
+    allow(plugin).to receive(:which).with("getconf").and_return(false)
+    plugin.run
+    expect(plugin[:sysconf]).to be(nil)
+  end
+end