SONiC Management Framework Release 1.0 (#659)

* Added scripts to provide back-end for CLI commands

Scripts to provide the files /var/platform/syseeprom and /var/paltform/system,
which are JSON files read by CLI commands, to provide system information.

Signed-off-by: Howard Persh <[email protected]>

* Change system information poll to not use file locking

Signed-off-by: Howard Persh <[email protected]>

* Modify system system info poller to provide process start time in seconds

Signed-off-by: Howard Persh <[email protected]>

* Small optimization for system info poll script

Signed-off-by: Howard Persh <[email protected]>

* Add new scripts for CLI backend to setup.py

Signed-off-by: Howard Persh <[email protected]>

scripts/syseeprom-to-json

@@ -0,0 +1,31 @@
+#!/usr/bin/awk -f
+
+BEGIN { print "{"; n = 0 }
+
+function sep()
+{
+	if (n > 0)  print ", ";
+	++n;
+}
+
+/Product Name/       { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Part Number/        { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Serial Number/      { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Base MAC Address/   { sep(); print "\"" $1 " " $2 " " $3 "\": \"" $6 "\""; }
+/Manufacture Date/   { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Device Version/     { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Label Revision/     { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Platform Name/      { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/ONIE Version/       { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/MAC Addresses/      { sep(); print "\"" $1 " " $2 "\": " $5; }
+/Manfacturer/        { sep(); print "\"" $1 "\": \"" $4 "\""; } 
+/Manfacture Country/ { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Vendor Name/        { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Diag Version/       { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Service Tag/        { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Hardware Version/   { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Software Version/   { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Manfacture Date/    { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+/Model Name/         { sep(); print "\"" $1 " " $2 "\": \"" $5 "\""; } 
+
+END { print "}" }

scripts/syspoll

@@ -0,0 +1,48 @@
+#!/usr/bin/python
+
+import sys
+import os
+import subprocess
+import json
+import time
+
+progname = sys.argv[0]
+
+outfile = '/var/platform/system'
+tmpfile = '/var/platform/system.tmp'
+
+ticks_per_sec = os.sysconf(os.sysconf_names['SC_CLK_TCK'])
+
+while True:
+    d = {}
+    d['hostname'] = subprocess.check_output(['hostname']).rstrip()
+    w = subprocess.check_output(['free']).split('\n')[1].split()
+    d['total'] = int(w[1])
+    d['used']  = int(w[2])
+    d['free']  = int(w[3])
+    btime = int(subprocess.check_output(['bash', '-c', "cat /proc/stat | grep '^btime'"]).split()[1])
+    cpus = []
+    for li in subprocess.check_output(['bash', '-c', "cat /proc/stat | grep '^cpu'"]).rstrip().split('\n'):
+        w = li.split()
+        cpus.append({'user': int(w[1]) + int(w[2]), 'system': int(w[3]), 'idle': int(w[4])})
+    d['cpus'] = cpus
+    procs = {}
+    for li in subprocess.check_output(['ps', 'aux']).rstrip().split('\n')[1:]:
+        w = li.split()
+        cmd = ' '.join(w[10:])
+        if progname in cmd:
+            continue
+        pid = w[1]
+        try:
+            w2 = subprocess.check_output(['bash', '-c', 'cat /proc/{}/stat 2>/dev/null'.format(pid)]).split()
+        except subprocess.CalledProcessError:
+            continue
+        procs[pid] = {'cmd': cmd, 'start': btime + int(w2[21]) / ticks_per_sec, 'user': int(w2[13]), 'system': int(w2[14]), 'mem': int(w[4]), 'cpuitil': float(w[2]), 'memutil': float(w[3])}
+    d['procs'] = procs
+
+    f = open(tmpfile, 'w')
+    json.dump(d, f)
+    f.close()
+    os.rename(tmpfile, outfile)
+
+    time.sleep(1)

setup.py

@@ -83,6 +83,8 @@
         'scripts/route_check.py',
         'scripts/route_check_test.sh',
         'scripts/sfpshow',
+        'scripts/syseeprom-to-json',
+        'scripts/syspoll',
         'scripts/teamshow',
         'scripts/warm-reboot',
         'scripts/watermarkstat',