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Posted to dev@cloudstack.apache.org by remibergsma <gi...@git.apache.org> on 2015/12/03 19:46:44 UTC

[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

GitHub user remibergsma opened a pull request:

    https://github.com/apache/cloudstack/pull/1163

    Send arping to the gateway instead of our own address

    We need to send an Unsolicited ARP to the gateway, instead of our own address. We now encounter problems when people deploy/destroy/deploy and get the same public ip.
    
    Packets arrive, but with incorrect / cached mac and are ignored by the routervm kernel.
    Run arping manually to update the arp-cache on the gateway and things start to work.
    
    Then we discovered the `arping` is actually done, but sent to its own address. Therefore the gateway doesn't pick it up. We only saw this happening when rapid deploy tools are used, like Terraform that do deploy/destroy/deploy and might get the same ip but on a new router having a new mac.
    
    ```
    2015-12-03 18:07:25,589  CsHelper.py execute:160 Executing: arping -c 1 -I eth1 -A -U -s 192.168.23.8 192.168.23.1
    ```
    
    The integration tests seem happy, although the full run is still ongoing:
    
    ```
    === TestName: test_01_create_redundant_VPC_2tiers_4VMs_4IPs_4PF_ACL | Status : SUCCESS ===
    ```
    
    Thanks @sspans for helping trouble shoot this. Ping @wilderrodrigues can you review please?

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/remibergsma/cloudstack arping-to-gw

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/cloudstack/pull/1163.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1163
    
----
commit 90e01c95a2db3d9b7c6586b2b228e0a9c5b9e415
Author: Remi Bergsma <gi...@remi.nl>
Date:   2015-12-03T17:15:31Z

    CLOUDSTACK-9097 Make public ip work immediately
    
    We need to send an Unsolicited ARP to the gateway, instead of our own address. We now encounter problems when people deploy/destroy/deploy and get the same public ip.

----


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by DaanHoogland <gi...@git.apache.org>.
Github user DaanHoogland commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161788201
  
    Makes sense @remibergsma Is that test an example of the failure before the fix?


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by bhaisaab <gi...@git.apache.org>.
Github user bhaisaab commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161923441
  
    Nice :)


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:

    https://github.com/apache/cloudstack/pull/1163


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by remibergsma <gi...@git.apache.org>.
Github user remibergsma commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161916986
  
    @DaanHoogland I will count that as a LGTM and will ask @wilderrodrigues to also review.


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by DaanHoogland <gi...@git.apache.org>.
Github user DaanHoogland commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161923353
  
    Thanks guys, will reduce the number of false positives by some


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by DaanHoogland <gi...@git.apache.org>.
Github user DaanHoogland commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161916594
  
    please merge


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by wilderrodrigues <gi...@git.apache.org>.
Github user wilderrodrigues commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161921580
  
    Hi there...
    
    Also got my LGTM! So it's now 2. :)
    
    Cheers,
    Wilder


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by remibergsma <gi...@git.apache.org>.
Github user remibergsma commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161915494
  
    @DaanHoogland Yes, that one fails quite regularly and I think that is related. Although without this fix it also passes, just not always (can be explained by ip address reuse and timings) but we'll have to see. 


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by remibergsma <gi...@git.apache.org>.
Github user remibergsma commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161915571
  
    Full integration tests pass:
    ```
    nosetests --with-marvin --marvin-config=${marvinCfg} -s -a tags=advanced,required_hardware=true \
    component/test_vpc_redundant.py \
    component/test_routers_iptables_default_policy.py \
    component/test_routers_network_ops.py \
    component/test_vpc_router_nics.py \
    smoke/test_loadbalance.py \
    smoke/test_internal_lb.py \
    smoke/test_ssvm.py \
    smoke/test_network.py
    
    ```
    
    Result:
    
    ```
    Create a redundant VPC with two networks with two VMs in each network ... === TestName: test_01_create_redundant_VPC_2tiers_4VMs_4IPs_4PF_ACL | Status : SUCCESS ===
    ok
    Create a redundant VPC with two networks with two VMs in each network and check default routes ... === TestName: test_02_redundant_VPC_default_routes | Status : SUCCESS ===
    ok
    Create a redundant VPC with two networks with two VMs in each network ... === TestName: test_03_create_redundant_VPC_1tier_2VMs_2IPs_2PF_ACL_reboot_routers | Status : SUCCESS ===
    ok
    Test iptables default INPUT/FORWARD policy on RouterVM ... === TestName: test_02_routervm_iptables_policies | Status : SUCCESS ===
    ok
    Test iptables default INPUT/FORWARD policies on VPC router ... === TestName: test_01_single_VPC_iptables_policies | Status : SUCCESS ===
    ok
    Test redundant router internals ... === TestName: test_01_isolate_network_FW_PF_default_routes_egress_true | Status : SUCCESS ===
    ok
    Test redundant router internals ... === TestName: test_02_isolate_network_FW_PF_default_routes_egress_false | Status : SUCCESS ===
    ok
    Test redundant router internals ... === TestName: test_01_RVR_Network_FW_PF_SSH_default_routes_egress_true | Status : SUCCESS ===
    ok
    Test redundant router internals ... === TestName: test_02_RVR_Network_FW_PF_SSH_default_routes_egress_false | Status : SUCCESS ===
    ok
    Create a VPC with two networks with one VM in each network and test nics after destroy ... === TestName: test_01_VPC_nics_after_destroy | Status : SUCCESS ===
    ok
    Create a VPC with two networks with one VM in each network and test default routes ... === TestName: test_02_VPC_default_routes | Status : SUCCESS ===
    ok
    Check the password file in the Router VM ... === TestName: test_isolate_network_password_server | Status : SUCCESS ===
    ok
    Check that the /etc/dhcphosts.txt doesn't contain duplicate IPs ... === TestName: test_router_dhcphosts | Status : SUCCESS ===
    ok
    Test to create Load balancing rule with source NAT ... === TestName: test_01_create_lb_rule_src_nat | Status : SUCCESS ===
    ok
    Test to create Load balancing rule with non source NAT ... === TestName: test_02_create_lb_rule_non_nat | Status : SUCCESS ===
    ok
    Test for assign & removing load balancing rule ... === TestName: test_assign_and_removal_lb | Status : SUCCESS ===
    ok
    Test to verify access to loadbalancer haproxy admin stats page ... === TestName: test02_internallb_haproxy_stats_on_all_interfaces | Status : SUCCESS ===
    ok
    Test create, assign, remove of an Internal LB with roundrobin http traffic to 3 vm's ... === TestName: test_01_internallb_roundrobin_1VPC_3VM_HTTP_port80 | Status : SUCCESS ===
    ok
    Test SSVM Internals ... === TestName: test_03_ssvm_internals | Status : SUCCESS ===
    ok
    Test CPVM Internals ... === TestName: test_04_cpvm_internals | Status : SUCCESS ===
    ok
    Test stop SSVM ... === TestName: test_05_stop_ssvm | Status : SUCCESS ===
    ok
    Test stop CPVM ... === TestName: test_06_stop_cpvm | Status : SUCCESS ===
    ok
    Test reboot SSVM ... === TestName: test_07_reboot_ssvm | Status : SUCCESS ===
    ok
    Test reboot CPVM ... === TestName: test_08_reboot_cpvm | Status : SUCCESS ===
    ok
    Test destroy SSVM ... === TestName: test_09_destroy_ssvm | Status : SUCCESS ===
    ok
    Test destroy CPVM ... === TestName: test_10_destroy_cpvm | Status : SUCCESS ===
    ok
    Test Remote Access VPN in VPC ... === TestName: test_vpc_remote_access_vpn | Status : SUCCESS ===
    ok
    Test VPN in VPC ... === TestName: test_vpc_site2site_vpn | Status : SUCCESS ===
    ok
    Test for port forwarding on source NAT ... === TestName: test_01_port_fwd_on_src_nat | Status : SUCCESS ===
    ok
    Test for port forwarding on non source NAT ... === TestName: test_02_port_fwd_on_non_src_nat | Status : SUCCESS ===
    ok
    Test for reboot router ... === TestName: test_reboot_router | Status : SUCCESS ===
    ok
    Test for Router rules for network rules on acquired public IP ... === TestName: test_network_rules_acquired_public_ip_1_static_nat_rule | Status : SUCCESS ===
    ok
    Test for Router rules for network rules on acquired public IP ... === TestName: test_network_rules_acquired_public_ip_2_nat_rule | Status : SUCCESS ===
    ok
    Test for Router rules for network rules on acquired public IP ... === TestName: test_network_rules_acquired_public_ip_3_Load_Balancer_Rule | Status : SUCCESS ===
    ok
    
    ----------------------------------------------------------------------
    Ran 34 tests in 16055.741s
    
    OK
    ```
    
    
    And:
    
    ```
    nosetests --with-marvin --marvin-config=${marvinCfg} -s -a tags=advanced,required_hardware=false \
    smoke/test_routers.py \
    smoke/test_network_acl.py \
    smoke/test_privategw_acl.py \
    smoke/test_reset_vm_on_reboot.py \
    smoke/test_vm_life_cycle.py \
    smoke/test_vpc_vpn.py \
    smoke/test_service_offerings.py \
    component/test_vpc_offerings.py \
    component/test_vpc_routers.py
    ```
    
    Result:
    
    ```
    Test router internal advanced zone ... === TestName: test_02_router_internal_adv | Status : SUCCESS ===
    ok
    Test restart network ... === TestName: test_03_restart_network_cleanup | Status : SUCCESS ===
    ok
    Test router basic setup ... === TestName: test_05_router_basic | Status : SUCCESS ===
    ok
    Test router advanced setup ... === TestName: test_06_router_advanced | Status : SUCCESS ===
    ok
    Test stop router ... === TestName: test_07_stop_router | Status : SUCCESS ===
    ok
    Test start router ... === TestName: test_08_start_router | Status : SUCCESS ===
    ok
    Test reboot router ... === TestName: test_09_reboot_router | Status : SUCCESS ===
    ok
    test_privategw_acl (integration.smoke.test_privategw_acl.TestPrivateGwACL) ... === TestName: test_privategw_acl | Status : SUCCESS ===
    ok
    Test reset virtual machine on reboot ... === TestName: test_01_reset_vm_on_reboot | Status : SUCCESS ===
    ok
    Test advanced zone virtual router ... === TestName: test_advZoneVirtualRouter | Status : SUCCESS ===
    ok
    Test Deploy Virtual Machine ... === TestName: test_deploy_vm | Status : SUCCESS ===
    ok
    Test Multiple Deploy Virtual Machine ... === TestName: test_deploy_vm_multiple | Status : SUCCESS ===
    ok
    Test Stop Virtual Machine ... === TestName: test_01_stop_vm | Status : SUCCESS ===
    ok
    Test Start Virtual Machine ... === TestName: test_02_start_vm | Status : SUCCESS ===
    ok
    Test Reboot Virtual Machine ... === TestName: test_03_reboot_vm | Status : SUCCESS ===
    ok
    Test destroy Virtual Machine ... === TestName: test_06_destroy_vm | Status : SUCCESS ===
    ok
    Test recover Virtual Machine ... === TestName: test_07_restore_vm | Status : SUCCESS ===
    ok
    Test migrate VM ... === TestName: test_08_migrate_vm | Status : SUCCESS ===
    ok
    Test destroy(expunge) Virtual Machine ... === TestName: test_09_expunge_vm | Status : SUCCESS ===
    ok
    Test to create service offering ... === TestName: test_01_create_service_offering | Status : SUCCESS ===
    ok
    Test to update existing service offering ... === TestName: test_02_edit_service_offering | Status : SUCCESS ===
    ok
    Test to delete service offering ... === TestName: test_03_delete_service_offering | Status : SUCCESS ===
    ok
    Test for delete account ... === TestName: test_delete_account | Status : SUCCESS ===
    ok
    Test for Associate/Disassociate public IP address for admin account ... === TestName: test_public_ip_admin_account | Status : SUCCESS ===
    ok
    Test for Associate/Disassociate public IP address for user account ... === TestName: test_public_ip_user_account | Status : SUCCESS ===
    ok
    Test for release public IP address ... === TestName: test_releaseIP | Status : SUCCESS ===
    ok
    Test create VPC offering ... === TestName: test_01_create_vpc_offering | Status : SUCCESS ===
    ok
    Test VPC offering without load balancing service ... === TestName: test_03_vpc_off_without_lb | Status : SUCCESS ===
    ok
    Test VPC offering without static NAT service ... === TestName: test_04_vpc_off_without_static_nat | Status : SUCCESS ===
    ok
    Test VPC offering without port forwarding service ... === TestName: test_05_vpc_off_without_pf | Status : SUCCESS ===
    ok
    Test VPC offering with invalid services ... === TestName: test_06_vpc_off_invalid_services | Status : SUCCESS ===
    ok
    Test update VPC offering ... === TestName: test_07_update_vpc_off | Status : SUCCESS ===
    ok
    Test list VPC offering ... === TestName: test_08_list_vpc_off | Status : SUCCESS ===
    test_09_create_redundant_vpc_offering (integration.component.test_vpc_offerings.TestVPCOffering) ... === TestName: test_09_create_redundant_vpc_offering | Status : SUCCESS ===
    ok
    Test start/stop of router after addition of one guest network ... === TestName: test_01_start_stop_router_after_addition_of_one_guest_network | Status : SUCCESS ===
    ok
    Test reboot of router after addition of one guest network ... === TestName: test_02_reboot_router_after_addition_of_one_guest_network | Status : SUCCESS ===
    ok
    Test to change service offering of router after addition of one guest network ... === TestName: test_04_chg_srv_off_router_after_addition_of_one_guest_network | Status : SUCCESS ===
    ok
    Test destroy of router after addition of one guest network ... === TestName: test_05_destroy_router_after_addition_of_one_guest_network | Status : SUCCESS ===
    ok
    Test to stop and start router after creation of VPC ... === TestName: test_01_stop_start_router_after_creating_vpc | Status : SUCCESS ===
    ok
    Test to reboot the router after creating a VPC ... === TestName: test_02_reboot_router_after_creating_vpc | Status : SUCCESS ===
    ok
    Tests to change service offering of the Router after ... === TestName: test_04_change_service_offerring_vpc | Status : SUCCESS ===
    ok
    Test to destroy the router after creating a VPC ... === TestName: test_05_destroy_router_after_creating_vpc | Status : SUCCESS ===
    ok
    
    ----------------------------------------------------------------------
    Ran 42 tests in 7992.349s
    
    OK
    ```


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[GitHub] cloudstack pull request: Send arping to the gateway instead of our...

Posted by snuf <gi...@git.apache.org>.
Github user snuf commented on the pull request:

    https://github.com/apache/cloudstack/pull/1163#issuecomment-161921763
  
    Aloha,
    
    Nice find Remi, thanks for fixing this! LGTM.
    
    Cheers,
    
    Funs


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