docker-compose with 1 shard

scripts/0-init_mongod.sh
scripts/1-init_mongocfg.sh
scripts/2-add-shard0.sh

.gitignore

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+/docker_compose.env
+/var/lib/mongo

README.md

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 # mongo-cluster-docker-compose
 mongo-clluster-docker-compose
+
+## Docker-compose
+
+You can do the following to start with docker-compose:
+
+* copy `docker_compose.env.template` to `docker_compose.env` and modify the settings.
+* `docker-compose --env-file docker_compose.env -f docker-compose.yaml up -d`
+* `scripts/0-init_mongod.sh`
+* `scripts/1-init_mongocfg.sh`
+* `scripts/2-add-shard0.sh`
+
+您可以使用以下方式來使用 docker-compose:
+
+* 將 `./docker_compose.env.template` copy 到 `./docker_compose.env` 並且更改相對應的設定.
+* `docker-compose --env-file docker_compose.env -f docker-compose.yaml up -d`
+* `scripts/0-init_mongod.sh`
+* `scripts/1-init_mongocfg.sh`
+* `scripts/2-add-shard0.sh`

docker-compose.yaml

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+version: '2'
+services:
+  mongod0-0:
+    image: mongo:4.4.2
+    command:
+      - "mongod"
+      - "-f"
+      - "/etc/mongod.conf"
+    expose:
+      - 27018
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOD_CPU}
+          memory: ${MONGOD_MEM}
+        reservations:
+          cpus: ${MONGOD_CPU}
+          memory: ${MONGOD_MEM}
+    restart: always
+    volumes:
+      - ${MONGOD0_0}:/data/db
+      - ${MONGOD0_CFG}:/etc/mongod.conf
+  mongod0-1:
+    image: mongo:4.4.2
+    command:
+      - "mongod"
+      - "-f"
+      - "/etc/mongod.conf"
+    expose:
+      - 27018
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOD_CPU}
+          memory: ${MONGOD_MEM}
+        reservations:
+          cpus: ${MONGOD_CPU}
+          memory: ${MONGOD_MEM}
+    restart: always
+    volumes:
+      - ${MONGOD0_1}:/data/db
+      - ${MONGOD0_CFG}:/etc/mongod.conf
+  mongod0-arb:
+    image: mongo:4.4.2
+    command:
+      - "mongod"
+      - "-f"
+      - "/etc/mongod.conf"
+    expose:
+      - 27018
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOD_ARB_CPU}
+          memory: ${MONGOD_ARB_MEM}
+        reservations:
+          cpus: ${MONGOD_ARB_CPU}
+          memory: ${MONGOD_ARB_MEM}
+    restart: always
+    volumes:
+      - ${MONGOD0_ARB}:/data/db
+      - ${MONGOD0_CFG}:/etc/mongod.conf
+  mongocfg-0:
+    image: mongo:4.4.2
+    command:
+      - "mongod"
+      - "-f"
+      - "/etc/mongod.conf"
+    expose:
+      - 27019
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOCFG_CPU}
+          memory: ${MONGOCFG_MEM}
+        reservations:
+          cpus: ${MONGOCFG_CPU}
+          memory: ${MONGOCFG_MEM}
+    restart: always
+    volumes:
+      - ${MONGOCFG_0}:/data/db
+      - ${MONGOCFG_CFG}:/etc/mongod.conf
+  mongocfg-1:
+    image: mongo:4.4.2
+    command:
+      - "mongod"
+      - "-f"
+      - "/etc/mongod.conf"
+    expose:
+      - 27019
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOCFG_CPU}
+          memory: ${MONGOCFG_MEM}
+        reservations:
+          cpus: ${MONGOCFG_CPU}
+          memory: ${MONGOCFG_MEM}
+    restart: always
+    volumes:
+      - ${MONGOCFG_1}:/data/db
+      - ${MONGOCFG_CFG}:/etc/mongod.conf
+  mongocfg-2:
+    image: mongo:4.4.2
+    command:
+      - "mongod"
+      - "-f"
+      - "/etc/mongod.conf"
+    expose:
+      - 27019
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOCFG_CPU}
+          memory: ${MONGOCFG_MEM}
+        reservations:
+          cpus: ${MONGOCFG_CPU}
+          memory: ${MONGOCFG_MEM}
+    restart: always
+    volumes:
+      - ${MONGOCFG_2}:/data/db
+      - ${MONGOCFG_CFG}:/etc/mongod.conf
+  mongos-0:
+    image: mongo:4.4.2
+    ports:
+      - "127.0.0.1:27017:27017"
+    command:
+      - "mongos"
+      - "-f"
+      - "/etc/mongos.conf"
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOS_CPU}
+          memory: ${MONGOS_MEM}
+        reservations:
+          cpus: ${MONGOS_CPU}
+          memory: ${MONGOS_MEM}
+    restart: always
+    volumes:
+      - ${MONGOS_CFG}:/etc/mongos.conf
+  mongos-1:
+    image: mongo:4.4.2
+    ports:
+      - "127.0.0.1:27027:27017"
+    command:
+      - "mongos"
+      - "-f"
+      - "/etc/mongos.conf"
+    deploy:
+      resources:
+        limits:
+          cpus: ${MONGOS_CPU}
+          memory: ${MONGOS_MEM}
+        reservations:
+          cpus: ${MONGOS_CPU}
+          memory: ${MONGOS_MEM}
+    restart: always
+    volumes:
+      - ${MONGOS_CFG}:/etc/mongos.conf

docker_compose.env.template

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+MONGOD0_0=${PWD}/var/lib/mongo/mongod0_0
+MONGOD0_1=${PWD}/var/lib/mongo/mongod0_1
+MONGOD0_ARB=${PWD}/var/lib/mongo/mongod0_arb
+MONGOCFG_0=${PWD}/var/lib/mongo/mongocfg_0
+MONGOCFG_1=${PWD}/var/lib/mongo/mongocfg_1
+MONGOCFG_2=${PWD}/var/lib/mongo/mongocfg_2
+
+MONGOD0_CFG=${PWD}/etc/mongo/mongod0.conf
+MONGOCFG_CFG=${PWD}/etc/mongo/mongocfg.conf
+MONGOS_CFG=${PWD}/etc/mongo/mongos.conf
+
+MONGOD_CPU=2
+MONGOD_MEM=24G
+MONGOD_ARB_CPU=2
+MONGOD_ARB_MEM=4G
+MONGOCFG_CPU=2
+MONGOCFG_MEM=8G
+MONGOS_CPU=2
+MONGOS_MEM=8G

etc/mongo/mongocfg.conf

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+storage:
+  dbPath: /data/db
+  journal:
+    enabled: true
+  wiredTiger:
+    engineConfig:
+      cacheSizeGB: 0.3
+net:
+  bindIpAll: true
+  tls:
+    mode: disabled
+    # PEMKeyFile: /etc/mongo/ssl/mongo-keypem.pem
+    # CAFile: /etc/mongo/ssl/root-ca.pem
+    # allowConnectionsWithoutCertificates: true
+    # allowInvalidCertificates: false
+# security:
+#  clusterAuthMode: x509
+replication:
+  replSetName: mongo-configsvr
+sharding:
+  clusterRole: configsvr

etc/mongo/mongod0.conf

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+storage:
+  dbPath: /data/db
+  journal:
+    enabled: true
+  wiredTiger:
+    engineConfig:
+      cacheSizeGB: 0.5
+net:
+  bindIpAll: true
+  tls:
+    mode: disabled
+    # PEMKeyFile: /etc/mongo/ssl/mongo-keypem.pem
+    # CAFile: /etc/mongo/ssl/root-ca.pem
+    # allowConnectionsWithoutCertificates: true
+    # allowInvalidCertificates: false
+# security:
+#   clusterAuthMode: x509
+replication:
+  replSetName: mongo0
+sharding:
+  clusterRole: shardsvr

etc/mongo/mongos.conf

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+net:
+  bindIpAll: true
+  tls:
+    mode: disabled
+    # PEMKeyFile: /etc/mongo/ssl/mongo-keypem.pem
+    # CAFile: /etc/mongo/ssl/root-ca.pem
+    # allowConnectionsWithoutCertificates: true
+    # allowInvalidCertificates: false
+# security:
+#  clusterAuthMode: x509
+sharding:
+  configDB: mongo-configsvr/mongocfg-0:27019,mongocfg-1:27019,mongocfg-2:27019

scripts/0-init_mongod.sh

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+#!/bin/bash
+
+docker exec mongo-cluster-docker-compose_mongod0-0_1 mongo localhost:27018 --eval 'rs.initiate({
+   _id : "mongo0",
+   members: [
+      { _id: 0, host: "mongod0-0:27018" },
+      { _id: 1, host: "mongod0-1:27018" },
+      { _id: 2, host: "mongod0-arb:27018", arbiterOnly: true }
+   ]
+})'

scripts/1-init_mongocfg.sh

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+#!/bin/bash
+
+docker exec mongo-cluster-docker-compose_mongocfg-0_1 mongo localhost:27019 --eval 'rs.initiate({
+   _id : "mongo-configsvr",
+   members: [
+      { _id: 0, host: "mongocfg-0:27019" },
+      { _id: 1, host: "mongocfg-1:27019" },
+      { _id: 2, host: "mongocfg-2:27019" }
+   ]
+})'

scripts/2-add-shard0.sh

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+#!/bin/bash
+
+docker exec mongo-cluster-docker-compose_mongos-0_1 mongo localhost:27017 --eval 'sh.addShard("mongo0/mongod0-0:27018,mongod0-1:27018")'