DX Unified Infrastructure Management

Hello,

Is there way in LUA to detect the newly added robots on a Hub and install the packages automatically?

I was using request.cfg file and installing the packages, wondering if it's can be done using LUA.

Thanks

I can not think of a way to do this as there is no new robot flag that is stored anyplace.

I would suggest you look at the new MCS in 8.47 as this is the only thing that I think comes close.

With LUA you would have to store the previous runs robot list in a file and parse it each time you check and then add new ones to it I would think to manage the list of robots.

Thanks for the response.

We are actually running in 8.31, no plans to get to 8.47 soon. that's why i was looking for a way to get this done via LUA.

You could get the package list (packages deployed to the robot) and if there is no other packages installed other than the robot (ie a new host) then you could deploy the baseline probe packages.

This script does something similar and might be useful....

Just run it once a day or something

cheers

Rowan

-- script : auto package deploy
-- author : Nimsoft, Rowan Collis
-- desc : this script gets all the hubs and then for each hub, gets the robots and for each one
-- gets the list of installs and checks if there is no cdm (for example).
-- If so then deploy the package derived from the robotname

fname = "./AutoDeploy.log"
-- Creates/overwrites the file - only do once
--file.create (fname)

function check_package(package_name)
pds.putString(args,"name", package_name)
pds.putInt(args,"detail_level",1)
check,rc = nimbus.request(hubrobot.."/distsrv","archive_list",args)
max_ver = 0;package_found = false
if rc == NIME_OK then
if check.entry ~= nil then
for _, chk in pairs( check.entry) do
ver = tonumber (chk.version)
if ver > max_ver then
max_ver = ver
end
package_found = true
end
else
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." ERROR on Package Check on "..hubrobot.."/distsrv Package "..strPackage.." missing ".."\n")
print(" auto deployment script: Package "..strPackage.." not present in archive so no deployment possible")
end
else
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." ERROR on request archive_list to "..hubrobot.."/distsrv (error "..rc..")".."\n")
print ( " auto deployment script: ERROR on Package Check on "..hubrobot.."/distsrv Package "..strPackage.." (error "..rc..")")
end
end

file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." ************************* Starting Auto Deploy Script *************************".."\n")

args = pds.create()

tblHub = nimbus.request("hub","gethubs")

for _,hub in pairs(tblHub.hublist) do
ctrUp = 0; ctrDown = 0; ctrRebuild = 0; ctrComError = 0; ctrPkgError = 0
printf("hub = %s",hub.addr)
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." hub is "..hub.addr.."\n")
hubrobot = "/"..hub.domain.."/"..hub.name.."/"..hub.robotname
if hub.status == 0
--and hub.domain == "rc-win7-dom"
then
tblRobots = nimbus.request(hub.addr,"getrobots",args,2)
if tblRobots ~= nil then
strDomain = tblRobots.domain
for _,robot in pairs(tblRobots.robotlist) do
printf(" %s",robot.name)
if robot.status == 0 then
newbuild = "yes"
addr = robot.addr.."/controller"
command = "inst_list_summary"
list,rc = nimbus.request(addr,command)
if rc ~= NIME_OK then
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." ERROR on request "..command.." to "..addr.." (error "..rc..")".."\n")
print("auto deployment script: ERROR on request "..command.." to "..addr.." (error "..rc..")")
newbuild = "error"; ctrComError = ctrComError + 1
else
for _,probe in pairs(list.pkg) do
if probe.name == "cdm" then
newbuild = "no"
end
end
if newbuild == "no" then
printf (" this is good"); ctrUp = ctrUp + 1
else
printf (" this is a rebuild")
strFP = mid(robot.name,7,5)
strPackage = "baseline_"..strFP
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Trying to deploy Package "..strPackage.." to "..robot.addr.."\n")
print ("package is ",strPackage)
--check package exists
check_package (strPackage)
--if package in archive then deploy
if package_found then
-- pds.putString(args,"package", strPackage)
-- pds.putString(args,"robot", robot.addr)
-- deploy,rc = nimbus.request(hubrobot.."/distsrv","job_add",args)
if rc == NIME_OK then
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Deployed Package "..strPackage.." Version "..max_ver.." to "..robot.addr.."\n")
printf ("deployed package %s to %s",strPackage,robot.addr)
ctrRebuild = ctrRebuild + 1
else
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." ERROR on request jobadd to "..hubrobot.."/distsrv (error "..rc..")".."\n")
print("auto deployment script: ERROR on request jobadd to "..hubrobot.."/distsrv (error "..rc..")")
end
else
ctrPkgError = ctrPkgError + 1
end
end
end


else
printf (" this robot is down")
ctrDown = ctrDown + 1
end
end
end
else
if hub.status == 0 then
printf (" this hub is possibly in a different domain")
else
printf (" this hub isn't running")
end
end
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Stats: Robots up:"..ctrUp.."\n")
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Stats: Robots down:"..ctrDown.."\n")
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Stats: Robots rebuilt:"..ctrRebuild.."\n")
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Stats: Robots Comm Error:"..ctrComError.."\n")
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." Stats: Robots Packge Error:"..ctrPkgError.."\n")

end
file.write (fname,timestamp.format ( timestamp.now(), "%Y-%m-%d %H:%M:%S").." ************************* Finished Auto Deploy Script *************************".."\n")

Thanks a lot. Will modify it as per my requirement and try,

What about looking the following objects to aid in locating recently deployed robots.

Query via LUA or DB query

• Robot creation time based on created by date criteria. If done through LUA would need to loop through each hub.
• Leverage user tag to denote new object pending onboarding.
  • Include default user tag for pending onboarding via robot-vars during robot installation. Can ease this deployment via including said robot files off any nimsoft root directory\install and retrieve robot and installation file through installation script via wget.
• Deploy packages via LUA or request.cfg.

Also consider that once you have this scripted you can use callbacks to dirscan to test if a file/directory exists (install sqlserver package if you find SQL server installed for instance), or the get_file callback to the controller - handy if you have a config file on the destination system that might have usernames or passwords you could put into the configs with the controller callback  probe_config_set. Or if you retrieve the list of installed packages, you can compare the versions and automate the update process.

-Garin