|
| 1 | +--- |
| 2 | + |
| 3 | +- hosts: all |
| 4 | + |
| 5 | + vars: |
| 6 | + pg_port: 15432 |
| 7 | + pg_prefix: "{{ansible_env.HOME}}/pg_cluster" |
| 8 | + pg_src: "{{pg_prefix}}/src" |
| 9 | + pg_dst: "{{pg_prefix}}/install" |
| 10 | + pg_datadir: "{{pg_prefix}}/data_{{pg_port}}" |
| 11 | + pg_repo: https://github.com/postgrespro/postgres_cluster.git |
| 12 | + pg_version_tag: master |
| 13 | + pg_destroy_and_init: true |
| 14 | + makejobs: 4 |
| 15 | + |
| 16 | + tasks: |
| 17 | + |
| 18 | + - name: ensure dependencies (Debian) |
| 19 | + apt: pkg={{item}} state=installed |
| 20 | + with_items: |
| 21 | + - git |
| 22 | + - automake |
| 23 | + - libtool |
| 24 | + - build-essential |
| 25 | + - bison |
| 26 | + - flex |
| 27 | + - libreadline-dev |
| 28 | + when: ansible_os_family == "Debian" |
| 29 | + become: yes |
| 30 | + |
| 31 | + - name: ensure dependencies (RedHat) |
| 32 | + yum: name="@Development tools" state=present |
| 33 | + when: ansible_os_family == "RedHat" |
| 34 | + become: yes |
| 35 | + |
| 36 | + - name: ensure dependencies (RedHat) |
| 37 | + yum: name={{item}} state=installed |
| 38 | + with_items: |
| 39 | + - git |
| 40 | + - automake |
| 41 | + - libtool |
| 42 | + - bison |
| 43 | + - flex |
| 44 | + - readline-devel |
| 45 | + when: ansible_os_family == "RedHat" |
| 46 | + become: yes |
| 47 | + |
| 48 | + - name: increase semaphores |
| 49 | + sysctl: name=kernel.sem value="1000 128000 128 512" |
| 50 | + become: yes |
| 51 | + |
| 52 | + - name: increase open files |
| 53 | + lineinfile: |
| 54 | + dest: /etc/security/limits.d/cluster.conf |
| 55 | + line: "{{ansible_ssh_user}} soft nofile 65535" |
| 56 | + state: present |
| 57 | + create: yes |
| 58 | + become: yes |
| 59 | + |
| 60 | + - name: clone postgres sources |
| 61 | + git: repo={{pg_repo}} |
| 62 | + dest={{pg_src}} |
| 63 | + version={{pg_version_tag}} |
| 64 | + depth=1 |
| 65 | + accept_hostkey=True |
| 66 | + register: pg_sources |
| 67 | + |
| 68 | + - name: build and install |
| 69 | + shell: env CFLAGS="-O0" ./configure --prefix={{pg_dst}} --enable-debug --without-zlib && make clean && make -j {{makejobs}} && make install |
| 70 | + args: |
| 71 | + chdir: "{{pg_src}}" |
| 72 | + creates: "{{pg_dst}}/bin/postgres" |
| 73 | + |
| 74 | + - name: build raftable |
| 75 | + shell: "make clean && make -j {{makejobs}} install" |
| 76 | + args: |
| 77 | + chdir: "{{pg_src}}/contrib/raftable" |
| 78 | + |
| 79 | + - name: build multimaster |
| 80 | + shell: "make clean && make -j {{makejobs}} install" |
| 81 | + args: |
| 82 | + chdir: "{{pg_src}}/contrib/mmts" |
| 83 | + |
| 84 | + ############################################################### |
| 85 | + |
| 86 | + - name: stop postgres if it was running |
| 87 | + shell: "pkill -9 postgres || true" |
| 88 | + when: pg_destroy_and_init |
| 89 | + |
| 90 | + - name: remove datadirs on datanodes |
| 91 | + command: "rm -rf {{pg_datadir}}" |
| 92 | + when: pg_destroy_and_init |
| 93 | + |
| 94 | + - name: create datadirs on datanodes |
| 95 | + command: "{{pg_dst}}/bin/initdb {{pg_datadir}}" |
| 96 | + environment: |
| 97 | + LD_LIBRARY_PATH: "{{pg_dst}}/lib/" |
| 98 | + args: |
| 99 | + creates: "{{pg_datadir}}" |
| 100 | + |
| 101 | + - name: generate mmts connstrings |
| 102 | + set_fact: |
| 103 | + connstr: "host={{item}} user={{ansible_ssh_user}} port={{pg_port}} dbname=postgres" |
| 104 | + raft_connstr: "{{ hostvars[item]['node_id'] }}:{{item}}:8989" |
| 105 | + with_items: |
| 106 | + "{{ groups['nodes'] | reverse | batch(nnodes | d(3) | int) | first }}" |
| 107 | + register: connstrs |
| 108 | + |
| 109 | + - name: collect raftable connstrings |
| 110 | + set_fact: |
| 111 | + mm_connstr: "{{ connstrs.results | map(attribute='ansible_facts.connstr') | join(', ') }}" |
| 112 | + raft_connstr: "{{ connstrs.results | map(attribute='ansible_facts.raft_connstr') | join(', ') }}" |
| 113 | + |
| 114 | + - name: configure postgres on datanodes |
| 115 | + lineinfile: |
| 116 | + dest: "{{pg_datadir}}/postgresql.conf" |
| 117 | + line: "{{item}}" |
| 118 | + state: present |
| 119 | + with_items: |
| 120 | + - "listen_addresses = '*'" |
| 121 | + - "max_prepared_transactions = 800" |
| 122 | + - "shared_buffers = 3GB" |
| 123 | + - "max_connections = 2048" |
| 124 | + - "port = {{pg_port}}" |
| 125 | + - "synchronous_commit = off" |
| 126 | + - "wal_level = logical" |
| 127 | + - "max_worker_processes = 15" |
| 128 | + - "max_replication_slots = 10" |
| 129 | + - "max_wal_senders = 10" |
| 130 | + - "log_checkpoints = on" |
| 131 | + - "log_autovacuum_min_duration = 0" |
| 132 | + - "shared_preload_libraries = 'raftable,multimaster'" |
| 133 | + - "default_transaction_isolation = 'repeatable read'" |
| 134 | + - "raftable.id = {{ node_id }}" |
| 135 | + - "raftable.peers = '{{ raft_connstr }}'" |
| 136 | + - "multimaster.workers = 4" |
| 137 | + - "multimaster.arbiter_port = {{ 7777 }}" |
| 138 | + - "multimaster.use_raftable = true" |
| 139 | + - "multimaster.queue_size=52857600" |
| 140 | + - "multimaster.ignore_tables_without_pk = 1" |
| 141 | + - "multimaster.node_id = {{ node_id }}" |
| 142 | + - "multimaster.conn_strings = '{{ mm_connstr }}'" |
| 143 | + - "multimaster.heartbeat_recv_timeout = 1000" |
| 144 | + - "multimaster.heartbeat_send_timeout = 250" |
| 145 | + - "multimaster.twopc_min_timeout = 40000" |
| 146 | + |
| 147 | + - name: enable blind trust on datanodes |
| 148 | + lineinfile: |
| 149 | + dest: "{{pg_datadir}}/pg_hba.conf" |
| 150 | + line: "{{item}}" |
| 151 | + state: present |
| 152 | + with_items: |
| 153 | + - "host all all 0.0.0.0/0 trust" |
| 154 | + - "host replication all 0.0.0.0/0 trust" |
| 155 | + - "local replication all trust" |
| 156 | + |
| 157 | + - name: start postgrespro |
| 158 | + shell: "ulimit -c unlimited && {{pg_dst}}/bin/pg_ctl start -w -D {{pg_datadir}} -l {{pg_datadir}}/pg.log" |
| 159 | + environment: |
| 160 | + LD_LIBRARY_PATH: "{{pg_dst}}/lib/" |
| 161 | + |
0 commit comments