Docker

Install Docker on Ubuntu -headless

1. Get Docker

   curl -fsSL https://get.docker.com -o get-docker.sh
   

2. Install Docker

   sh get-docker.sh
   

3. Check Installation

   docker --version
   docker compose version
   

4. Remove installation file

   rm get-docker.sh
   

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Run Docker service

1. CD to path

   cd /path/to/your/compose-file
   

2. Docker compose up

   docker compose up -d
   

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Transfer Docker to from VPS to VPS

• This is sample for shifting n8n from VPS to VPS

1. In Old VPS, cd to docker compose folder

   cd /opt/n8n
   

2. Export volume

   docker run --rm -v n8n_data:/volume -v $(pwd):/backup ubuntu tar cvf /backup/n8n_data.tar /volume
   

   ssh root@new-vps-ip "mkdir -p /opt/n8n/local-files /opt/n8n/n8n_data"
   

   scp n8n_data.tar docker-compose.yml root@new-vps-id:/opt/n8n/
   rsync -avzP /local-files/ root@new-vps-id:/opt/n8n/local-files/
   

3. On new VPS

   cd/opt/n8n
   

   tar xvf n8n_data.tar -C /opt/n8n/n8n_data --strip-components=1
   

   chown -R 1000:1000 /opt/n8n/n8n_data /opt/n8n/local-files
   

   docker compose up -d
   

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List Container in docker

docker container ls

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Export container

! CD to the file location you want to export to
docker container export [container id] -o [name.file format]

! Example:
docker container export 9b677774e35e0 -o Wordpress.tar

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Docker copy

docker cp -a [container id]:file/location/[file] [destination]

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Docker can't Pull

sudo groupadd -f docker 
sudo usermod-aG docker $USER 
sudo nano /etc/docker/daemon.json

• Add in :

  {
  "Insecure-registries":["https://hub.docker.com"]
  }
  

  ! Need line break after }
  
• Restart Docker

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