Forked from pecigonzalo/docker-dind-swarm-cluster.sh
Created
October 12, 2024 09:00
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Docker in Docker (dind) swarm creation script
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| #!/bin/bash | |
| # set -x | |
| MANAGER=${1:-3} | |
| WORKER=${2:-0} | |
| #========================= | |
| # Creating cluster members | |
| #========================= | |
| echo "### Creating $MANAGER managers" | |
| for i in $(seq 2 "$MANAGER"); do | |
| docker run -d --privileged --name master-"${i}" --hostname=master-"${i}" -p "${i}"2375:2375 docker:stable-dind | |
| done | |
| echo "### Creating $WORKER workers" | |
| for i in $(seq 1 "$WORKER"); do | |
| docker run -d --privileged --name worker-"${i}" --hostname=worker-"${i}" -p "${i}"3375:2375 docker:stable-dind | |
| done | |
| #=============== | |
| # Starting swarm | |
| #=============== | |
| MANAGER_IP="172.17.0.1" | |
| echo "### Initializing main master: localhost" | |
| docker swarm init --advertise-addr "$MANAGER_IP" | |
| #=============== | |
| # Adding members | |
| #=============== | |
| MANAGER_TOKEN=$(docker swarm join-token -q manager) | |
| WORKER_TOKEN=$(docker swarm join-token -q worker) | |
| for i in $(seq 2 "$MANAGER"); do | |
| echo "### Joining manager: swarm-manager$i" | |
| docker --host=localhost:"${i}"2375 swarm join --token "${MANAGER_TOKEN}" "${MANAGER_IP}":2377 | |
| done | |
| for i in $(seq 1 "$WORKER"); do | |
| echo "### Joining worker: swarm-manager$i" | |
| docker --host=localhost:"${i}"3375 swarm join --token "${WORKER_TOKEN}" "${MANAGER_IP}":2377 | |
| done | |
| docker node ls |
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