Irule to disable ASM

once ASM is enabled ON VS it is always enabled & never goes disabled again when serevr1 comes back online

does server1 get traffic (after coming back online)?

this is my testing and it seems working correctly.

 configuration

root@(B11050-R72-S12)(cfg-sync Standalone)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 100.100.100.100:http
    ip-protocol tcp
    mask 255.255.255.255
    policies {
        asm_auto_l7_policy__bar
    }
    profiles {
        http { }
        tcp { }
        websecurity { }
    }
    rules {
        qux
    }
    security-log-profiles {
        "Log illegal requests"
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 2
}
root@(B11050-R72-S12)(cfg-sync Standalone)(Active)(/Common)(tmos) list ltm policy asm_auto_l7_policy__bar
ltm policy asm_auto_l7_policy__bar {
    controls { asm }
    requires { http }
    rules {
        default {
            actions {
                1 {
                    asm
                    enable
                    policy /Common/bar
                }
            }
            ordinal 1
        }
    }
    strategy first-match
}
root@(B11050-R72-S12)(cfg-sync Standalone)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST {
  if { [active_members foo1] > 0 } {
    ASM::disable
    pool foo1
  } elseif { [active_members foo2] > 0 } {
    ASM::enable /Common/bar
    pool foo2
  } else {
    reject
  }
  log local0. "Client=[IP::client_addr]:[TCP::client_port] Host=[HTTP::host] URI=[HTTP::uri] Pool=[LB::server pool]"
}
when ASM_REQUEST_DONE {
  log local0. "Client=[IP::client_addr]:[TCP::client_port] Host=[HTTP::host] URI=[HTTP::uri] Pool=[LB::server pool]"
}
}

 test

[root@B11050-R72-S12:Active:Standalone] config  tail -f /var/log/ltm
Dec 20 03:47:06 B11050-R72-S12 info tmm2[21668]: Rule /Common/qux : Client=100.100.100.3:37773 Host=100.100.100.100 URI=/first Pool=/Common/foo1
Dec 20 03:47:16 B11050-R72-S12 info tmm3[21668]: Rule /Common/qux : Client=100.100.100.3:37774 Host=100.100.100.100 URI=/second Pool=/Common/foo1
Dec 20 03:47:23 B11050-R72-S12 notice mcpd[7215]: 01070638:5: Pool /Common/foo1 member /Common/200.200.200.101:80 monitor status down. [ /Common/fake: down ]  [ was unchecked for 0hr:2mins:50sec ]
Dec 20 03:47:23 B11050-R72-S12 err tmm10[21669]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm6[21669]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm2[21668]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm9[21669]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm4[21668]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm5[21668]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm8[21669]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm[21668]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm7[21669]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm3[21668]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm1[21668]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:23 B11050-R72-S12 err tmm11[21669]: 01010028:3: No members available for pool /Common/foo1
Dec 20 03:47:26 B11050-R72-S12 info tmm5[21668]: Rule /Common/qux : Client=100.100.100.3:37775 Host=100.100.100.100 URI=/third Pool=/Common/foo2
Dec 20 03:47:26 B11050-R72-S12 info tmm5[21668]: Rule /Common/qux : Client=100.100.100.3:37775 Host=100.100.100.100 URI=/third Pool=/Common/foo2
Dec 20 03:47:56 B11050-R72-S12 info tmm4[21668]: Rule /Common/qux : Client=100.100.100.3:37777 Host=100.100.100.100 URI=/fourth Pool=/Common/foo2
Dec 20 03:47:56 B11050-R72-S12 info tmm4[21668]: Rule /Common/qux : Client=100.100.100.3:37777 Host=100.100.100.100 URI=/fourth Pool=/Common/foo2
Dec 20 03:48:00 B11050-R72-S12 notice mcpd[7215]: 01070638:5: Pool /Common/foo1 member /Common/200.200.200.101:80 monitor status unchecked. [  ]  [ was down for 0hr:0min:37sec ]
Dec 20 03:48:00 B11050-R72-S12 err tmm2[21668]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm[21668]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm5[21668]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm11[21669]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm3[21668]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm4[21668]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm1[21668]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm9[21669]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm6[21669]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm10[21669]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm8[21669]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:00 B11050-R72-S12 err tmm7[21669]: 01010221:3: Pool /Common/foo1 now has available members
Dec 20 03:48:05 B11050-R72-S12 info tmm7[21669]: Rule /Common/qux : Client=100.100.100.3:37778 Host=100.100.100.100 URI=/fifth Pool=/Common/foo1
Dec 20 03:48:13 B11050-R72-S12 info tmm10[21669]: Rule /Common/qux : Client=100.100.100.3:37779 Host=100.100.100.100 URI=/sixth Pool=/Common/foo1