From 4ca71667972b56438cd38633998878babc58807a Mon Sep 17 00:00:00 2001 From: Samuel Munilla Date: Wed, 18 Nov 2015 10:59:04 -0500 Subject: atomic-openshift-installer: HA for quick installer This adds the ability to quickly set up a multi-master environment. --- utils/src/ooinstall/cli_installer.py | 82 ++++++++++++++++++++++++++++---- utils/src/ooinstall/oo_config.py | 9 +++- utils/src/ooinstall/openshift_ansible.py | 36 ++++++++++++-- 3 files changed, 110 insertions(+), 17 deletions(-) (limited to 'utils/src') diff --git a/utils/src/ooinstall/cli_installer.py b/utils/src/ooinstall/cli_installer.py index 0b3af8829..1b4a67259 100644 --- a/utils/src/ooinstall/cli_installer.py +++ b/utils/src/ooinstall/cli_installer.py @@ -72,7 +72,7 @@ def delete_hosts(hosts): click.echo("\"{}\" doesn't coorespond to any valid input.".format(del_idx)) return hosts, None -def collect_hosts(master_set=False): +def collect_hosts(masters_set=False): """ Collect host information from user. This will later be filled in using ansible. @@ -102,17 +102,20 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen hosts = [] more_hosts = True + num_masters = 0 while more_hosts: host_props = {} - hostname_or_ip = click.prompt('Enter hostname or IP address:', - default='', - value_proc=validate_prompt_hostname) - - host_props['connect_to'] = hostname_or_ip - if not master_set: - is_master = click.confirm('Will this host be an OpenShift Master?') - host_props['master'] = is_master - master_set = is_master + host_props['connect_to'] = click.prompt('Enter hostname or IP address:', + default='', + value_proc=validate_prompt_hostname) + + if not masters_set: + if click.confirm('Will this host be an OpenShift Master?'): + host_props['master'] = True + num_masters += 1 + if num_masters >= 3: + masters_set = True + hosts.append(collect_ha_proxy()) host_props['node'] = True #TODO: Reenable this option once container installs are out of tech preview @@ -132,6 +135,29 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen more_hosts = click.confirm('Do you want to add additional hosts?') return hosts +def collect_ha_proxy(): + """ + Get an HA proxy from the user + """ + message = """ +Setting up High Availability Masters requires a load balancing solution. +Please provide a host that will be configured as a proxy. This can either be +an existing load balancer configured to balance all masters on port 8443 or a +new host that will have HAProxy installed on it. +""" + click.echo(message) + host_props = {} + host_props['connect_to'] = click.prompt('Enter hostname or IP address:', + default='', + value_proc=validate_prompt_hostname) + host_props['run_on'] = click.confirm('Is this a clean host you want to install HAProxy on?') + host_props['master'] = False + host_props['node'] = False + host_props['ha_proxy'] = True + ha_proxy = Host(**host_props) + + return ha_proxy + def confirm_hosts_facts(oo_cfg, callback_facts): hosts = oo_cfg.hosts click.clear() @@ -199,6 +225,40 @@ Edit %s with the desired values and run `atomic-openshift-installer --unattended sys.exit(0) return default_facts + + +def check_hosts_config(oo_cfg): + click.clear() + masters = [host for host in oo_cfg.hosts if host.master] + if len(masters) > 1: + ha_proxy = [host for host in oo_cfg.hosts if host.ha_proxy] + click.echo(ha_proxy) + if len(ha_proxy) > 1: + click.echo('More than one HAProxy specified. Only one proxy is allowed.') + sys.exit(0) + elif len(ha_proxy) == 1: + if ha_proxy[0].master or ha_proxy[0].node: + click.echo('HAProxy is configured as a master or node. Please correct this.') + sys.exit(0) + else: + message = """ +No HAProxy given in config. Either specify one or provide a load balancing solution +of your choice to balance the master API (port 8443) on all master hosts. + +https://docs.openshift.org/latest/install_config/install/advanced_install.html#multiple-masters +""" + confirm_continue(message) + + nodes = [host.node for host in oo_cfg.hosts] + if len(masters) == len(nodes): + message = """ +No dedicated Nodes specified. By default, colocated Masters have their Nodes set to unscheduleable. +Would you like to label the colocated masters as scheduleable? +""" + confirm_continue(message) + + return + def get_variant_and_version(): message = "\nWhich variant would you like to install?\n\n" @@ -555,6 +615,8 @@ def install(ctx, force): else: oo_cfg = get_missing_info_from_user(oo_cfg) + check_hosts_config(oo_cfg) + click.echo('Gathering information from hosts...') callback_facts, error = openshift_ansible.default_facts(oo_cfg.hosts, verbose) diff --git a/utils/src/ooinstall/oo_config.py b/utils/src/ooinstall/oo_config.py index 9c97e6e93..6b4f36204 100644 --- a/utils/src/ooinstall/oo_config.py +++ b/utils/src/ooinstall/oo_config.py @@ -36,19 +36,24 @@ class Host(object): self.public_ip = kwargs.get('public_ip', None) self.public_hostname = kwargs.get('public_hostname', None) self.connect_to = kwargs.get('connect_to', None) + self.run_on = kwargs.get('run_on', None) # Should this host run as an OpenShift master: self.master = kwargs.get('master', False) # Should this host run as an OpenShift node: self.node = kwargs.get('node', False) + + # Should this host run as an HAProxy: + self.ha_proxy = kwargs.get('ha_proxy', False) + self.containerized = kwargs.get('containerized', False) if self.connect_to is None: raise OOConfigInvalidHostError("You must specify either and 'ip' " \ "or 'hostname' to connect to.") - if self.master is False and self.node is False: + if self.master is False and self.node is False and self.ha_proxy is False: raise OOConfigInvalidHostError( "You must specify each host as either a master or a node.") @@ -62,7 +67,7 @@ class Host(object): """ Used when exporting to yaml. """ d = {} for prop in ['ip', 'hostname', 'public_ip', 'public_hostname', - 'master', 'node', 'containerized', 'connect_to']: + 'master', 'node', 'ha_proxy', 'containerized', 'connect_to', 'run_on']: # If the property is defined (not None or False), export it: if getattr(self, prop): d[prop] = getattr(self, prop) diff --git a/utils/src/ooinstall/openshift_ansible.py b/utils/src/ooinstall/openshift_ansible.py index 372f27bda..ec97c4144 100644 --- a/utils/src/ooinstall/openshift_ansible.py +++ b/utils/src/ooinstall/openshift_ansible.py @@ -17,14 +17,31 @@ def set_config(cfg): def generate_inventory(hosts): global CFG + masters = [host for host in hosts if host.master] + nodes = [host for host in hosts if host.node] + proxy = next((host for host in hosts if host.ha_proxy), None) + multiple_masters = len(masters) > 1 base_inventory_path = CFG.settings['ansible_inventory_path'] base_inventory = open(base_inventory_path, 'w') - base_inventory.write('\n[OSEv3:children]\nmasters\nnodes\n') + + base_inventory.write('\n[OSEv3:children]\n') + base_inventory.write('masters\n') + base_inventory.write('nodes\n') + if multiple_masters: + base_inventory.write('etcd\n') + if getattr(proxy, 'run_on', False): + base_inventory.write('lb\n') + base_inventory.write('\n[OSEv3:vars]\n') base_inventory.write('ansible_ssh_user={}\n'.format(CFG.settings['ansible_ssh_user'])) if CFG.settings['ansible_ssh_user'] != 'root': base_inventory.write('ansible_become=true\n') + if multiple_masters: + base_inventory.write('openshift_master_cluster_method=native\n') + base_inventory.write("openshift_master_cluster_hostname={}\n".format(proxy.hostname)) + base_inventory.write("openshift_master_cluster_public_hostname={}\n".format(proxy.public_hostname)) + # Find the correct deployment type for ansible: ver = find_variant(CFG.settings['variant'], @@ -45,19 +62,28 @@ def generate_inventory(hosts): "'enabled': 1, 'gpgcheck': 0}}]\n".format(os.environ['OO_INSTALL_PUDDLE_REPO'])) base_inventory.write('\n[masters]\n') - masters = (host for host in hosts if host.master) for master in masters: write_host(master, base_inventory) + + if len(masters) > 1: + base_inventory.write('\n[etcd]\n') + for master in masters: + write_host(master, base_inventory) + base_inventory.write('\n[nodes]\n') - nodes = (host for host in hosts if host.node) for node in nodes: # TODO: Until the Master can run the SDN itself we have to configure the Masters # as Nodes too. scheduleable = True # If there's only one Node and it's also a Master we want it to be scheduleable: - if node in masters and len(masters) != 1: + if node in masters and len(masters) != len(nodes): scheduleable = False write_host(node, base_inventory, scheduleable) + + if getattr(proxy, 'run_on', False): + base_inventory.write('\n[lb]\n') + write_host(proxy, base_inventory) + base_inventory.close() return base_inventory_path @@ -118,6 +144,7 @@ def default_facts(hosts, verbose=False): facts_env = os.environ.copy() facts_env["OO_INSTALL_CALLBACK_FACTS_YAML"] = CFG.settings['ansible_callback_facts_yaml'] facts_env["ANSIBLE_CALLBACK_PLUGINS"] = CFG.settings['ansible_plugins_directory'] + facts_env["OPENSHIFT_MASTER_CLUSTER_METHOD"] = 'native' if 'ansible_log_path' in CFG.settings: facts_env["ANSIBLE_LOG_PATH"] = CFG.settings['ansible_log_path'] if 'ansible_config' in CFG.settings: @@ -176,4 +203,3 @@ def run_upgrade_playbook(verbose=False): if 'ansible_config' in CFG.settings: facts_env['ANSIBLE_CONFIG'] = CFG.settings['ansible_config'] return run_ansible(playbook, inventory_file, facts_env, verbose) - -- cgit v1.2.3 From 26fd8b9488f8b334eecac113dac4789412587f21 Mon Sep 17 00:00:00 2001 From: Samuel Munilla Date: Fri, 20 Nov 2015 10:41:42 -0500 Subject: Enforce 1 or 3 masters --- utils/src/ooinstall/cli_installer.py | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'utils/src') diff --git a/utils/src/ooinstall/cli_installer.py b/utils/src/ooinstall/cli_installer.py index 1b4a67259..fce8f9b22 100644 --- a/utils/src/ooinstall/cli_installer.py +++ b/utils/src/ooinstall/cli_installer.py @@ -113,9 +113,12 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen if click.confirm('Will this host be an OpenShift Master?'): host_props['master'] = True num_masters += 1 + + if num_masters > 1: + hosts.append(collect_ha_proxy()) + if num_masters >= 3: masters_set = True - hosts.append(collect_ha_proxy()) host_props['node'] = True #TODO: Reenable this option once container installs are out of tech preview @@ -132,7 +135,8 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen hosts.append(host) - more_hosts = click.confirm('Do you want to add additional hosts?') + if num_masters <= 1 or num_masters >= 3: + more_hosts = click.confirm('Do you want to add additional hosts?') return hosts def collect_ha_proxy(): @@ -144,6 +148,8 @@ Setting up High Availability Masters requires a load balancing solution. Please provide a host that will be configured as a proxy. This can either be an existing load balancer configured to balance all masters on port 8443 or a new host that will have HAProxy installed on it. + +This will also require you to set a third master. """ click.echo(message) host_props = {} -- cgit v1.2.3 From df620266882dbf5bede4c5778b29a9e70778b02a Mon Sep 17 00:00:00 2001 From: Samuel Munilla Date: Fri, 20 Nov 2015 10:56:19 -0500 Subject: Breakup inventory writing --- utils/src/ooinstall/openshift_ansible.py | 40 +++++++++++++++++++------------- 1 file changed, 24 insertions(+), 16 deletions(-) (limited to 'utils/src') diff --git a/utils/src/ooinstall/openshift_ansible.py b/utils/src/ooinstall/openshift_ansible.py index ec97c4144..ff674153d 100644 --- a/utils/src/ooinstall/openshift_ansible.py +++ b/utils/src/ooinstall/openshift_ansible.py @@ -25,23 +25,9 @@ def generate_inventory(hosts): base_inventory_path = CFG.settings['ansible_inventory_path'] base_inventory = open(base_inventory_path, 'w') - base_inventory.write('\n[OSEv3:children]\n') - base_inventory.write('masters\n') - base_inventory.write('nodes\n') - if multiple_masters: - base_inventory.write('etcd\n') - if getattr(proxy, 'run_on', False): - base_inventory.write('lb\n') - - base_inventory.write('\n[OSEv3:vars]\n') - base_inventory.write('ansible_ssh_user={}\n'.format(CFG.settings['ansible_ssh_user'])) - if CFG.settings['ansible_ssh_user'] != 'root': - base_inventory.write('ansible_become=true\n') - if multiple_masters: - base_inventory.write('openshift_master_cluster_method=native\n') - base_inventory.write("openshift_master_cluster_hostname={}\n".format(proxy.hostname)) - base_inventory.write("openshift_master_cluster_public_hostname={}\n".format(proxy.public_hostname)) + write_inventory_children(base_inventory, multiple_masters, proxy) + write_inventory_vars(base_inventory, multiple_masters, proxy) # Find the correct deployment type for ansible: ver = find_variant(CFG.settings['variant'], @@ -87,6 +73,28 @@ def generate_inventory(hosts): base_inventory.close() return base_inventory_path +def write_inventory_children(base_inventory, multiple_masters, proxy): + global CFG + + base_inventory.write('\n[OSEv3:children]\n') + base_inventory.write('masters\n') + base_inventory.write('nodes\n') + if multiple_masters: + base_inventory.write('etcd\n') + if getattr(proxy, 'run_on', False): + base_inventory.write('lb\n') + +def write_inventory_vars(base_inventory, multiple_masters, proxy): + global CFG + base_inventory.write('\n[OSEv3:vars]\n') + base_inventory.write('ansible_ssh_user={}\n'.format(CFG.settings['ansible_ssh_user'])) + if CFG.settings['ansible_ssh_user'] != 'root': + base_inventory.write('ansible_become=true\n') + if multiple_masters: + base_inventory.write('openshift_master_cluster_method=native\n') + base_inventory.write("openshift_master_cluster_hostname={}\n".format(proxy.hostname)) + base_inventory.write("openshift_master_cluster_public_hostname={}\n".format(proxy.public_hostname)) + def write_host(host, inventory, scheduleable=True): global CFG -- cgit v1.2.3 From 27a8228a81c81b2f7db003eedb3b9eaf03a849b4 Mon Sep 17 00:00:00 2001 From: Samuel Munilla Date: Fri, 20 Nov 2015 15:34:35 -0500 Subject: atomic-openshift-installer: Reverse version and host collection Reverse the order we ask two questions: What variant the user wants to install and which hosts to install on. This lets us avoid asking for multiple masters for 3.0 installs. --- utils/src/ooinstall/cli_installer.py | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'utils/src') diff --git a/utils/src/ooinstall/cli_installer.py b/utils/src/ooinstall/cli_installer.py index fce8f9b22..01093379f 100644 --- a/utils/src/ooinstall/cli_installer.py +++ b/utils/src/ooinstall/cli_installer.py @@ -72,7 +72,7 @@ def delete_hosts(hosts): click.echo("\"{}\" doesn't coorespond to any valid input.".format(del_idx)) return hosts, None -def collect_hosts(masters_set=False): +def collect_hosts(version=None, masters_set=False): """ Collect host information from user. This will later be filled in using ansible. @@ -117,7 +117,7 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen if num_masters > 1: hosts.append(collect_ha_proxy()) - if num_masters >= 3: + if num_masters >= 3 or version == '3.0': masters_set = True host_props['node'] = True @@ -265,7 +265,7 @@ Would you like to label the colocated masters as scheduleable? return -def get_variant_and_version(): +def get_variant_and_version(multi_master=False): message = "\nWhich variant would you like to install?\n\n" i = 1 @@ -277,6 +277,8 @@ def get_variant_and_version(): message = "%s\n" % message click.echo(message) + if multi_master: + click.echo('NOTE: 3.0 installations are not') response = click.prompt("Choose a variant from above: ", default=1) product, version = combos[response - 1] @@ -358,16 +360,16 @@ https://docs.openshift.com/enterprise/latest/admin_guide/install/prerequisites.h oo_cfg.settings['ansible_ssh_user'] = get_ansible_ssh_user() click.clear() - if not oo_cfg.hosts: - oo_cfg.hosts = collect_hosts() - click.clear() - if oo_cfg.settings.get('variant', '') == '': variant, version = get_variant_and_version() oo_cfg.settings['variant'] = variant.name oo_cfg.settings['variant_version'] = version.name click.clear() + if not oo_cfg.hosts: + oo_cfg.hosts = collect_hosts(version=oo_cfg.settings['variant_version']) + click.clear() + return oo_cfg @@ -378,7 +380,7 @@ def collect_new_nodes(): Add new nodes here """ click.echo(message) - return collect_hosts(True) + return collect_hosts(masters_set=True) def get_installed_hosts(hosts, callback_facts): installed_hosts = [] -- cgit v1.2.3 From 0b191360ec7d934b582d0c59cd8e377df92438dd Mon Sep 17 00:00:00 2001 From: Samuel Munilla Date: Fri, 20 Nov 2015 15:58:05 -0500 Subject: atomic-openshift-installer: Rename ha_proxy Rename ha_proxy variables and methods to 'master_lb' to better future-proof things. --- utils/src/ooinstall/cli_installer.py | 20 ++++++++++---------- utils/src/ooinstall/oo_config.py | 6 +++--- utils/src/ooinstall/openshift_ansible.py | 2 +- 3 files changed, 14 insertions(+), 14 deletions(-) (limited to 'utils/src') diff --git a/utils/src/ooinstall/cli_installer.py b/utils/src/ooinstall/cli_installer.py index 01093379f..ac9d884d9 100644 --- a/utils/src/ooinstall/cli_installer.py +++ b/utils/src/ooinstall/cli_installer.py @@ -115,7 +115,7 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen num_masters += 1 if num_masters > 1: - hosts.append(collect_ha_proxy()) + hosts.append(collect_master_lb()) if num_masters >= 3 or version == '3.0': masters_set = True @@ -139,7 +139,7 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen more_hosts = click.confirm('Do you want to add additional hosts?') return hosts -def collect_ha_proxy(): +def collect_master_lb(): """ Get an HA proxy from the user """ @@ -159,10 +159,10 @@ This will also require you to set a third master. host_props['run_on'] = click.confirm('Is this a clean host you want to install HAProxy on?') host_props['master'] = False host_props['node'] = False - host_props['ha_proxy'] = True - ha_proxy = Host(**host_props) + host_props['master_lb'] = True + master_lb = Host(**host_props) - return ha_proxy + return master_lb def confirm_hosts_facts(oo_cfg, callback_facts): hosts = oo_cfg.hosts @@ -237,13 +237,13 @@ def check_hosts_config(oo_cfg): click.clear() masters = [host for host in oo_cfg.hosts if host.master] if len(masters) > 1: - ha_proxy = [host for host in oo_cfg.hosts if host.ha_proxy] - click.echo(ha_proxy) - if len(ha_proxy) > 1: + master_lb = [host for host in oo_cfg.hosts if host.master_lb] + click.echo(master_lb) + if len(master_lb) > 1: click.echo('More than one HAProxy specified. Only one proxy is allowed.') sys.exit(0) - elif len(ha_proxy) == 1: - if ha_proxy[0].master or ha_proxy[0].node: + elif len(master_lb) == 1: + if master_lb[0].master or master_lb[0].node: click.echo('HAProxy is configured as a master or node. Please correct this.') sys.exit(0) else: diff --git a/utils/src/ooinstall/oo_config.py b/utils/src/ooinstall/oo_config.py index 6b4f36204..243a75b09 100644 --- a/utils/src/ooinstall/oo_config.py +++ b/utils/src/ooinstall/oo_config.py @@ -45,7 +45,7 @@ class Host(object): self.node = kwargs.get('node', False) # Should this host run as an HAProxy: - self.ha_proxy = kwargs.get('ha_proxy', False) + self.master_lb = kwargs.get('master_lb', False) self.containerized = kwargs.get('containerized', False) @@ -53,7 +53,7 @@ class Host(object): raise OOConfigInvalidHostError("You must specify either and 'ip' " \ "or 'hostname' to connect to.") - if self.master is False and self.node is False and self.ha_proxy is False: + if self.master is False and self.node is False and self.master_lb is False: raise OOConfigInvalidHostError( "You must specify each host as either a master or a node.") @@ -67,7 +67,7 @@ class Host(object): """ Used when exporting to yaml. """ d = {} for prop in ['ip', 'hostname', 'public_ip', 'public_hostname', - 'master', 'node', 'ha_proxy', 'containerized', 'connect_to', 'run_on']: + 'master', 'node', 'master_lb', 'containerized', 'connect_to', 'run_on']: # If the property is defined (not None or False), export it: if getattr(self, prop): d[prop] = getattr(self, prop) diff --git a/utils/src/ooinstall/openshift_ansible.py b/utils/src/ooinstall/openshift_ansible.py index ff674153d..86c707b17 100644 --- a/utils/src/ooinstall/openshift_ansible.py +++ b/utils/src/ooinstall/openshift_ansible.py @@ -19,7 +19,7 @@ def generate_inventory(hosts): global CFG masters = [host for host in hosts if host.master] nodes = [host for host in hosts if host.node] - proxy = next((host for host in hosts if host.ha_proxy), None) + proxy = next((host for host in hosts if host.master_lb), None) multiple_masters = len(masters) > 1 base_inventory_path = CFG.settings['ansible_inventory_path'] -- cgit v1.2.3