Cannot add 3rd irule to vip due to priority error even if priorities are different

The reason I thought that rule priorities might re-order is that is how certain other interfaces within iControl behave. Pool Members in GTM for example, re-order to be gapless.

 

 

After testing...

 

 

 

//Removed all rules for /Common/test

 

//get_rule for /Common/test

 

 

//add_rule for {'rule_name': 'rule_0' 'priority': '0'}

 

//get_rule for /Common/test

 

Rules for virtual /Common/test

 

Rule Name: /Common/rule_0

 

Rule Priority: 0 //What I expected

 

 

//add_rule for {'rule_name': 'rule_0', 'priority': '0'}{'rule_name': 'rule_1', 'priority': '100'}{'rule_name': 'rule_2', 'priority': '200'}{'rule_name': 'rule_3', 'priority': '50'}{'rule_name': 'rule_2', 'priority': '400'}

 

//get_rule for /Common/test

 

Rules for virtual /Common/test

 

Rule Name: /Common/rule_0

 

Rule Priority: 0

 

Rule Name: /Common/rule_1

 

Rule Priority: 100 //Not what I expected

 

Rule Name: /Common/rule_2

 

Rule Priority: 200 //Again, not what I expected

 

Rule Name: /Common/rule_3

 

Rule Priority: 50 // This one is now in the proper processing order to fire before rule_1, rule_2, rule_4

 

Rule Name: /Common/rule_4

 

Rule Priority: 400

 

 

//add_rule for {'rule_name': 'rule_5', 'priority': '1'}

 

//get_rule for /Common/test

 

Rules for virtual /Common/test

 

Rule Name: /Common/rule_0

 

Rule Priority: 0

 

Rule Name: /Common/rule_1

 

Rule Priority: 100

 

Rule Name: /Common/rule_2

 

Rule Priority: 200

 

Rule Name: /Common/rule_3

 

Rule Priority: 50

 

Rule Name: /Common/rule_4

 

Rule Priority: 400

 

Rule Name: /Common/rule_5

 

Rule Priority: 1 //Fires after rule_0, and before all other rules

 

 

To answer your original question, this is why priorities are important when adding rules, since they are stateful, not gapless, and cannot be inserted to force an adjacent rule down, you must explicitly define the order you wish them to run in.

 

When created by the GUI, they are applied in order 0,1,2,3,4,5 with no gaps. When you assign them via iControl, they are assigned with the priorities you specify.

 

If you were to someday have a need to insert a rule in between 2 gapless rules, you would first need to remove the rule with the higher priority. And since this may impact the whole rule chain, you may need to remove them all in order to insert the new rule at the beginning of the list, change the rule priorities in your dictionary, and then re-add them.

 

 

To answer your maintenance rule question, I didn't mean to say that you should permanently remove them, I only meant to say they you would need to remove them to re-prioritize them and add them back with your new rule, all within one run of the program. Once your maintenance was over you would simply 'remove_rule(virtualserver, rule_name)'