Alpine Linux nodes need tweak to playbook

I needed to change line 95 to ['ansible_default_ipv4'] to get it to work with alpine linux docker nodes -- I am new to ansible, though, so this might be nonsense or unhelpful, hence no PR. :)

...thanks for the blog entry and script, though. I hate standing up docker swarm nodes manually, it's so tedious. :) This is a huge time-saver!

Here is the debug output for hostvars[item] for the offending item (my other 4 nodes look similar). My ansible_eth0 has no ipv4 entry. Let me know if you'd like more info. SSH keys are all throwaways.

{ u 'dot114': { 'omit': 'omit_place_holder8419bb6096ef07d475d8c6206cb5b66a0958b6a9', u 'ansible_product_serial': u 'b957bbd1-43f9-e83f-62e9-c06ead27ac33', u 'ansible_form_factor': u 'Other', u 'ansible_product_version': u '4.6.1-xs121563', u 'ansible_fips': False, u 'ansible_service_mgr': u 'sysvinit', u 'ansible_memory_mb': { u 'real': { u 'total': 1998, u 'free': 1729, u 'used': 269 }, u 'swap': { u 'cached': 0, u 'total': 2559, u 'used': 0, u 'free': 2559 }, u 'nocache': { u 'used': 91, u 'free': 1907 } }, u 'ansible_user_dir': u '/root', u 'ansible_userspace_bits': u '64', u 'ansible_all_ipv4_addresses': [], u 'ansible_ssh_host_key_ecdsa_public': u 'AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBN5JgXiDtWX2iOTyfwvXW94wQXzM7mFh5M25SJory1S8uigErOsBQ7WtUHE4Y4j4K90iM5tHzh7OMR6L4nUxR3I=', 'playbook_dir': u '/root', u 'ansible_distribution_version': u '3.5.0', u 'ansible_domain': u '', u 'ansible_virtualization_type': u 'xen', u 'ansible_ssh_host_key_ed25519_public': u 'AAAAC3NzaC1lZDI1NTE5AAAAIAdi/Vq3jIHH/sx8/4kUCfkJX5TyauyWWpc7nSaCf05a', u 'ansible_devices': { u 'sr0': { u 'scheduler_mode': u 'cfq', u 'rotational': u '1', u 'vendor': u 'QEMU', u 'sectors': u '2097151', u 'sas_device_handle': None, u 'sas_address': None, u 'host': u '', u 'sectorsize': u '512', u 'removable': u '1', u 'support_discard': u '0', u 'model': u 'QEMU DVD-ROM', u 'size': u '1024.00 MB', u 'holders': [], u 'partitions': {} }, u 'xvda': { u 'scheduler_mode': u '', u 'rotational': u '0', u 'vendor': None, u 'sectors': u '20971520', u 'sas_device_handle': None, u 'sas_address': None, u 'host': u '', u 'sectorsize': u '512', u 'removable': u '0', u 'support_discard': u '0', u 'model': None, u 'size': u '10.00 GB', u 'holders': [], u 'partitions': { u 'xvda1': { u 'sectorsize': 512, u 'uuid': None, u 'sectors': u '204800', u 'start': u '2048', u 'holders': [], u 'size': u '100.00 MB' }, u 'xvda2': { u 'sectorsize': 512, u 'uuid': None, u 'sectors': u '5242880', u 'start': u '206848', u 'holders': [], u 'size': u '2.50 GB' }, u 'xvda3': { u 'sectorsize': 512, u 'uuid': None, u 'sectors': u '15521792', u 'start': u '5449728', u 'holders': [], u 'size': u '7.40 GB' } } } }, u 'ansible_processor_cores': 2, u 'ansible_virtualization_role': u 'guest', 'inventory_hostname': u 'dot114', u 'ansible_dns': { u 'nameservers': [u '8.8.4.4'], u 'search': [u 'xeond.msxpert.com'] }, u 'ansible_processor_vcpus': 2, u 'swarm_status': { u 'changed': True, u 'end': u '2017-01-19 21:35:41.156510', u 'stdout': u 'inactive', u 'cmd': u "docker info | egrep '^Swarm: ' | cut -d ' ' -f2", u 'rc': 0, u 'start': u '2017-01-19 21:35:41.138510', u 'stderr': u 'WARNING: No swap limit support', u 'delta': u '0:00:00.018000', 'stdout_lines': [u 'inactive'], u 'warnings': [] }, u 'ansible_docker0': { u 'macaddress': u '02:42:67:37:29:45', u 'features': {}, u 'interfaces': [], u 'mtu': 1500, u 'active': False, u 'promisc': False, u 'stp': False, u 'device': u 'docker0', u 'type': u 'bridge', u 'id': u '8000.024267372945' }, u 'ansible_bios_version': u '4.6.1-xs121563', u 'ansible_processor': [u 'GenuineIntel', u 'Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz', u 'GenuineIntel', u 'Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz'], u 'ansible_date_time': { u 'weekday_number': u '4', u 'iso8601_basic_short': u '20170119T213540', u 'tz': u 'UTC', u 'weeknumber': u '03', u 'hour': u '21', u 'time': u '21:35:40', u 'tz_offset': u '+0000', u 'month': u '01', u 'epoch': u '1484861740', u 'iso8601_micro': u '2017-01-19T21:35:40.912680Z', u 'weekday': u 'Thursday', u 'iso8601_basic': u '20170119T213540912555', u 'year': u '2017', u 'date': u '2017-01-19', u 'iso8601': u '2017-01-19T21:35:40Z', u 'day': u '19', u 'minute': u '35', u 'second': u '40' }, u 'ansible_lo': { u 'features': {}, u 'mtu': 65536, u 'active': True, u 'promisc': False, u 'device': u 'lo', u 'type': u 'loopback' }, u 'ansible_memtotal_mb': 1998, u 'ansible_architecture': u 'x86_64', u 'ansible_default_ipv4': { u 'interface': u 'eth0', u 'gateway': u '10.0.0.1', u 'address': u '10.0.0.114' }, u 'ansible_swapfree_mb': 2559, u 'ansible_default_ipv6': {}, u 'ansible_distribution_release': u 'NA', u 'ansible_system_vendor': u 'Xen', u 'ansible_os_family': u 'Alpine', 'group_names': [u 'swarm_worker_bootstrap', u 'worker'], u 'ansible_cmdline': { u 'nomodeset': True, u 'BOOT_IMAGE': u 'vmlinuz-grsec', u 'modules': u 'sd-mod,usb-storage,ext4', u 'quiet': True, u 'initrd': u 'initramfs-grsec', u 'root': u 'UUID=f090ebcf-17b1-4ff3-9525-7e1cff922be6' }, u 'ansible_system_capabilities': [u 'cap_chown', u 'cap_dac_override', u 'cap_dac_read_search', u 'cap_fowner', u 'cap_fsetid', u 'cap_kill', u 'cap_setgid', u 'cap_setuid', u 'cap_setpcap', u 'cap_linux_immutable', u 'cap_net_bind_service', u 'cap_net_broadcast', u 'cap_net_admin', u 'cap_net_raw', u 'cap_ipc_lock', u 'cap_ipc_owner', u 'cap_sys_module', u 'cap_sys_rawio', u 'cap_sys_chroot', u 'cap_sys_ptrace', u 'cap_sys_pacct', u 'cap_sys_admin', u 'cap_sys_boot', u 'cap_sys_nice', u 'cap_sys_resource', u 'cap_sys_time', u 'cap_sys_tty_config', u 'cap_mknod', u 'cap_lease', u 'cap_audit_write', u 'cap_audit_control', u 'cap_setfcap', u 'cap_mac_override', u 'cap_mac_admin', u 'cap_syslog', u 'cap_wake_alarm', u 'cap_block_suspend', u 'cap_audit_read+ep'], u 'ansible_user_gid': 0, u 'ansible_selinux': False, 'ansible_version': { 'major': 2, 'full': '2.2.0.0', 'string': '2.2.0.0', 'minor': 2, 'revision': 0 }, u 'ansible_userspace_architecture': u 'x86_64', u 'ansible_bios_date': u '02/29/2016', u 'ansible_product_uuid': u 'B957BBD1-43F9-E83F-62E9-C06EAD27AC33', 'inventory_file': '/etc/ansible/hosts', u 'ansible_system': u 'Linux', u 'ansible_pkg_mgr': u 'apk', u 'ansible_memfree_mb': 1729, u 'ansible_user_shell': u '/bin/ash', u 'ansible_user_uid': 0, u 'ansible_user_id': u 'root', u 'ansible_distribution': u 'Alpine', u 'ansible_env': { u 'USERNAME': u 'root', u 'SUDO_COMMAND': u '/bin/sh -c echo BECOME-SUCCESS-ubecwnppoflkthuxcufpxthjvtgbofpi; /usr/bin/python /root/.ansible/tmp/ansible-tmp-1484861740.52-249378026853971/setup.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1484861740.52-249378026853971/" > /dev/null 2>&1', u 'SUDO_GID': u '0', u 'SHELL': u '/bin/ash', u 'SHLVL': u '1', u 'SUDO_UID': u '0', u 'TERM': u 'xterm', u 'PATH': u '/bin:/usr/bin:/sbin:/usr/sbin', u 'PWD': u '/root', u 'LOGNAME': u 'root', u 'USER': u 'root', u 'HOME': u '/root', u 'MAIL': u '/var/mail/root', u 'SUDO_USER': u 'root' }, u 'ansible_distribution_major_version': u 'NA', u 'module_setup': True, u 'ansible_processor_count': 2, u 'ansible_hostname': u 'dot114', 'inventory_hostname_short': u 'dot114', u 'ansible_swaptotal_mb': 2559, u 'ansible_host': u '10.0.0.114', 'groups': { u 'swarm_manager_operational': [u 'dot110'], 'ungrouped': [], 'all': [u 'dot113', u 'dot114', u 'dot110', u 'dot111', u 'dot112'], u 'swarm_manager_bootstrap': [u 'dot111', u 'dot112'], u 'worker': [u 'dot113', u 'dot114'], u 'swarm_worker_bootstrap': [u 'dot113', u 'dot114'], u 'manager': [u 'dot110', u 'dot111', u 'dot112'] }, u 'ansible_all_ipv6_addresses': [], u 'ansible_interfaces': [u 'lo', u 'docker0', u 'eth0'], u 'ansible_uptime_seconds': 5471, u 'ansible_machine': u 'x86_64', u 'ansible_kernel': u '4.4.41-0-grsec', u 'ansible_gather_subset': [u 'hardware', u 'network', u 'virtual'], u 'ansible_user_gecos': u 'root', 'inventory_dir': '/etc/ansible', u 'ansible_system_capabilities_enforced': u 'True', u 'ansible_python': { u 'executable': u '/usr/bin/python', u 'version': { u 'micro': 13, u 'major': 2, u 'releaselevel': u 'final', u 'serial': 0, u 'minor': 7 }, u 'type': u 'CPython', u 'has_sslcontext': True, u 'version_info': [2, 7, 13, u 'final', 0] }, u 'ansible_processor_threads_per_core': 1, u 'ansible_fqdn': u 'dot114', u 'ansible_mounts': [{ u 'uuid': u 'N/A', u 'size_total': 7755128832, u 'mount': u '/', u 'size_available': 6831783936, u 'fstype': u 'ext4', u 'device': u '/dev/xvda3', u 'options': u 'rw,relatime,data=ordered' }, { u 'uuid': u 'N/A', u 'size_total': 97335296, u 'mount': u '/boot', u 'size_available': 73120768, u 'fstype': u 'ext4', u 'device': u '/dev/xvda1', u 'options': u 'rw,relatime,data=ordered' }, { u 'uuid': u 'N/A', u 'size_total': 7755128832, u 'mount': u '/var/lib/docker/overlay', u 'size_available': 6831783936, u 'fstype': u 'ext4', u 'device': u '/dev/xvda3', u 'options': u 'rw,relatime,data=ordered' }], u 'ansible_eth0': { u 'macaddress': u 'f6:85:3f:86:b8:22', u 'features': {}, u 'pciid': u 'vif-0', u 'module': u 'xen_netfront', u 'mtu': 1500, u 'active': True, u 'promisc': False, u 'device': u 'eth0', u 'type': u 'ether' }, u 'ansible_python_version': u '2.7.13', u 'ansible_product_name': u 'HVM domU', 'ansible_check_mode': False, u 'ansible_ssh_host_key_dsa_public': u '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', u 'ansible_ssh_host_key_rsa_public': u 'AAAAB3NzaC1yc2EAAAADAQABAAABAQC3+LDm6VawKuhHslZoeln/GclEM8jAqDnQ1HK/4Y0Wud9jewM83b325jdN7t3mCUUm9JaHAq4RTqTDWBY151QwSnF8TvuFGaqGY9csqT2JdSNGlIG8bnF6h4kC2GTjp7n3UOD1gOtKfwFI9q8KQUjP1+vKJJvpLd62rhap20iyEXeBz6RDJb5AjVY4i8w3oJuA8v/mHtaa+oBvN2cO5h13QKdIuSSo3ISLNwLMVs+RBjo9YNbxkizc8tlZbunKVP9Opxp3W8ic2AKBmv+XCbS/WQhJLERKBwirn+SgFwxqScWI5z1xmt93/tWeFq6UG/U+3P8xzq0Cd6nKcmUVsl5L', u 'ansible_nodename': u 'dot114' }

nextrevision / ansible-swarm-playbook

Alpine Linux nodes need tweak to playbook #7