Is there any way to transition from Type B to Type A

[sajusat]

Can you please tell me, if it is possible to go from Type B to Type A ?
It would be great if you can describe, what are the steps needs to be taken to move from Type B setup to Type A.
Thanks.

[vitabaks]

Hi @sajusat

1. Set with_haproxy_load_balancing: true in vars/main.yml
2. Specify ip addresses in [balancers] group in inventory file.
3. Specify vip_manager_disable: true in balancers.yml
4. Execute playbook
   ansible-playbook balancers.yml

[sajusat]

Thank you for the quick reply. I will try it out on my existing Type A setup on 3 test machines.

[sajusat]

except this on all three VM, everything went smoothly.

failed: [10.200.162.11] (item={u'name': u'net.netfilter.nf_conntrack_max', u'value': u'1048576'}) => {"ansible_loop_var": "item", "changed": false, "item": {"name": "net.netfilter.nf_conntrack_max", "value": "1048576"}, "msg": "Failed to reload sysctl: vm.swappiness = 1\nvm.min_free_kbytes = 102400\nvm.dirty_expire_centisecs = 1000\nvm.dirty_background_bytes = 67108864\nvm.dirty_bytes = 536870912\nvm.zone_reclaim_mode = 0\nkernel.numa_balancing = 0\nkernel.sched_migration_cost_ns = 5000000\nkernel.sched_autogroup_enabled = 0\nnet.ipv4.ip_nonlocal_bind = 1\nnet.ipv4.ip_forward = 1\nnet.ipv4.ip_local_port_range = 10000 65535\nnet.core.netdev_max_backlog = 10000\nnet.ipv4.tcp_max_syn_backlog = 8192\nnet.core.somaxconn = 65535\nsysctl: cannot stat /proc/sys/net/netfilter/nf_conntrack_max: No such file or directory\n"}
failed: [10.200.162.15] (item={u'name': u'net.netfilter.nf_conntrack_max', u'value': u'1048576'}) => {"ansible_loop_var": "item", "changed": false, "item": {"name": "net.netfilter.nf_conntrack_max", "value": "1048576"}, "msg": "Failed to reload sysctl: vm.swappiness = 1\nvm.min_free_kbytes = 102400\nvm.dirty_expire_centisecs = 1000\nvm.dirty_background_bytes = 67108864\nvm.dirty_bytes = 536870912\nvm.zone_reclaim_mode = 0\nkernel.numa_balancing = 0\nkernel.sched_migration_cost_ns = 5000000\nkernel.sched_autogroup_enabled = 0\nnet.ipv4.ip_nonlocal_bind = 1\nnet.ipv4.ip_forward = 1\nnet.ipv4.ip_local_port_range = 10000 65535\nnet.core.netdev_max_backlog = 10000\nnet.ipv4.tcp_max_syn_backlog = 8192\nnet.core.somaxconn = 65535\nsysctl: cannot stat /proc/sys/net/netfilter/nf_conntrack_max: No such file or directory\n"}
failed: [10.200.162.12] (item={u'name': u'net.netfilter.nf_conntrack_max', u'value': u'1048576'}) => {"ansible_loop_var": "item", "changed": false, "item": {"name": "net.netfilter.nf_conntrack_max", "value": "1048576"}, "msg": "Failed to reload sysctl: vm.swappiness = 1\nvm.min_free_kbytes = 102400\nvm.dirty_expire_centisecs = 1000\nvm.dirty_background_bytes = 67108864\nvm.dirty_bytes = 536870912\nvm.zone_reclaim_mode = 0\nkernel.numa_balancing = 0\nkernel.sched_migration_cost_ns = 5000000\nkernel.sched_autogroup_enabled = 0\nnet.ipv4.ip_nonlocal_bind = 1\nnet.ipv4.ip_forward = 1\nnet.ipv4.ip_local_port_range = 10000 65535\nnet.core.netdev_max_backlog = 10000\nnet.ipv4.tcp_max_syn_backlog = 8192\nnet.core.somaxconn = 65535\nsysctl: cannot stat /proc/sys/net/netfilter/nf_conntrack_max: No such file or directory\n"}

[vitabaks]

nf_conntrack_max: No such file or directory

This means you have disabled iptables.
If you disable the firewall then just comment out the net.netfilter.nf_conntrack_max variable in vars/system.yml

[sajusat]

@vitabaks Yes I have, disabled the iptables. It was locking me out of the system when I enabled the iptables and ran the ansibile.