iControl / iRules or Health Monitors?

Ok, a blatent interest request......

 

 

Here's what I've come up with to solve our minimum members requirement, I've got no idea how a health monitor should be written, so this is dirty but very fast....

 

 

Please advise, comment or ridicule as you see fit ;-D

 

 

Cheers,

 

 

-=ChaZ=-

 

 

 

Can't attach so here it is:

 

 

!/bin/bash

 

 

Pool & Member Definitions: Hardcoded for speed

 

 

 

POOL=3.5_XXX_Pool

 

POOL_PORT="29XXX"

 

POOL_MEMBERS="\

 

1XX.XXX.XXX.XXX:$POOL_PORT \

 

2XX.XXX.XXX.XXX:$POOL_PORT \

 

1XX.XXX.XXX.XXX:$POOL_PORT"

 

POOL_MAXIMUM_NUMBER_OF_DISABLED_MEMBERS=2

 

POOL_TOTAL_NUMBER_OF_MEMBERS=3

 

 

 

BP cmd: **ONLY** needs to see DISABLED in any of the output of a status of bp

 

and INACTIVE,FORCED

 

 

 

POOL_STATUS_CMD=`bp pool $POOL show`

 

ARRAYDNT=0

 

ARRAYFNT=0

 

 

for BP_OUTPUT in $POOL_STATUS_CMD

 

do

 

if [ "$BP_OUTPUT" = "DISABLED" ]

 

then

 

(( ARRAYDNT += 1 ))

 

elif [ "$BP_OUTPUT" = "INACTIVE,FORCED" ]

 

then

 

(( ARRAYFNT += 1 ))

 

fi

 

done

 

 

[[ $ARRAYDNT = 0 ]] && echo "up" && exit NOTHING TO DO? Leave BigIP alone.

 

[[ $ARRAYFNT = $POOL_TOTAL_NUMBER_OF_MEMBERS ]] && echo "down" && exit NOTHING TO DO? Leave BigIP alone.

 

 

 

If a member is disabled, check for the minimum required and down if not met

 

 

 

if [ $ARRAYDNT -ge $POOL_MAXIMUM_NUMBER_OF_DISABLED_MEMBERS ]

 

then

 

for DISABLE in $POOL_MEMBERS

 

do

 

bp pool $POOL member $DISABLE down

 

done

 

echo "down"

 

else

 

echo "up"

 

fi

 

 

 

exit