optimize size and time using "--no-cache-dir"

Using "--no-cache-dir" flag in pip install ,make sure dowloaded packages
by pip don't cached on system . This is a best practise which make sure
to fetch ftom repo instead of using local cached one . Further , in case
of Docker Containers , by restricing caching , we can reduce image size.
In term of stats , it depends upon the number of python packages
multiplied by their respective size . e.g for heavy packages with a lot
of dependencies it reduce a lot by don't caching pip packages.

Further , more detail information can be found at

https://medium.com/sciforce/strategies-of-docker-images-optimization-2ca9cc5719b6

Issue-ID: DCAEGEN2-2294

Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
Change-Id: Ifeda4876507f89279c550e15ec76508277098ca6

2 files changed, 6 insertions, 6 deletions

diff --git a/docs/sections/services/heartbeat-ms/testprocedure.rst b/docs/sections/services/heartbeat-ms/testprocedure.rst
index 03bcbab1..a7c6f799 100644
--- a/docs/sections/services/heartbeat-ms/testprocedure.rst
+++ b/docs/sections/services/heartbeat-ms/testprocedure.rst
@@ -203,7 +203,7 @@ The postgres DB also have a CL_flag set indicating control loop event with ONSET
 

 		ubuntu@r3-aai-inst2:~/heartbeat12Dec/heartbeat$ sudo Docker run -d --name hb1 --env-file env.list heartbeat.test1:latest102413e8af4ab754e008cee43a01bf3d5439820aa91cfb4e099a140a7931fd71

 		ubuntu@r3-aai-inst2:~/heartbeat12Dec/heartbeat$ sudo Docker logs -f hb1

-		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

+		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install --no-cache-dir psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

 		  """)

 		2018-12-12 12:39:58,968 | __main__ | misshtbtd | main | 309 |  INFO | MSHBD:Execution Started

 		2018-12-12 12:39:58,970 | __main__ | misshtbtd | main | 314 |  INFO | ('MSHBT:HB Properties -', '10.0.4.1', '5432', 'postgres', 'abc', 'hb_vnf', True, 300)

@@ -235,16 +235,16 @@ The postgres DB also have a CL_flag set indicating control loop event with ONSET
 		2018-12-12 12:39:59,139 | __main__ | misshtbtd | main | 386 |  INFO | ('MSHBD: Creating HB and DBM threads. The param pssed %d and %s', '../etc/config.json', 7)

 		2018-12-12 12:39:59,142 | __main__ | misshtbtd | create_process | 301 |  INFO | ('MSHBD:jobs list is', [<Process(Process-2, started)>, <Process(Process-3, started)>])

 		2018-12-12 12:39:59,221 | __main__ | misshtbtd | create_update_hb_common | 143 |  INFO | MSHBT:Updated  hb_common DB with new values

-		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

+		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install --no-cache-dir psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

 		  """)

 		2018-12-12 12:39:59,815 | __main__ | htbtworker | <module> | 243 |  INFO | HBT:HeartBeat thread Created

 		2018-12-12 12:39:59,815 | __main__ | htbtworker | <module> | 245 |  INFO | ('HBT:The config file name passed is -%s', '../etc/config.json')

-		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

+		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install --no-cache-dir psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

 		  """)

 		2018-12-12 12:39:59,931 | __main__ | cbs_polling | pollCBS | 39 |  INFO | ('CBSP:Main process ID in hb_common is %d', 7)

 		2018-12-12 12:39:59,931 | __main__ | cbs_polling | pollCBS | 41 |  INFO | ('CBSP:My parent process ID is %d', '7')

 		2018-12-12 12:39:59,931 | __main__ | cbs_polling | pollCBS | 43 |  INFO | ('CBSP:CBS Polling interval is %d', 300)

-		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

+		/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install --no-cache-dir psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.

 		  """)

 		2018-12-12 12:39:59,937 | __main__ | db_monitoring | <module> | 231 |  INFO | DBM: DBM Process started

 		2018-12-12 12:39:59,939 | __main__ | db_monitoring | <module> | 236 |  INFO | ('DBM:Parent process ID and json file name', '7', '../etc/config.json')

diff --git a/docs/sections/services/snmptrap/installation.rst b/docs/sections/services/snmptrap/installation.rst
index ab523ef4..602730d3 100644
--- a/docs/sections/services/snmptrap/installation.rst
+++ b/docs/sections/services/snmptrap/installation.rst
@@ -61,9 +61,9 @@ To install prerequisites:
 
     ``export PATH=<path to Python 3.6 binary>:$PATH``
 
-    ``pip3 install requests==2.18.3``
+    ``pip3 install --no-cache-dir requests==2.18.3``
 
-    ``pip3 install pysnmp==4.4.5``
+    ``pip3 install --no-cache-dir pysnmp==4.4.5``
 
 Download latest trapd version from Gerrit
 """""""""""""""""""""""""""""""""""""""""