Hey cloud adventurers! On Day 19 of our DevOps journey, we're diving deeper into Docker's sea of features. Today, we're all about volumes and networks, the unsung heroes of persistent data and container communication. 🌐🗂️
Docking into Docker Volumes 📦
Volumes are the storage wizards in Docker. They safeguard our data like treasure chests, ensuring that our precious databases and files are not lost when containers walk the plank.
- Creating Persistent Treasures: I used volumes to persist data generated by and used by Docker containers. Like creating a chest that stays afloat even when the ship sinks.
Networking the Container Fleet 🚢
Docker networks are the high seas that connect our container ships, allowing them to communicate and navigate the vast data ocean.
- Building the Container Armada: I spun up a network that allowed containers to talk to each other, creating a mighty fleet of services that work together seamlessly.
Task-1: Composing a Docker Symphony 🎼
Today's composition involved orchestrating multiple containers with a docker-compose.yml.
📝 Composing the Score: Defined my app and database services in the
docker-compose.yml.
🚀 Launching the Fleet: With
docker-compose up -d, I launched my services into the background.
📈 Scaling the Crew: Adjusted the number of container crewmates with
docker-compose scale.
📊 Monitoring the Deck: Kept an eye on the containers with
docker-compose psand checked their logs when needed.
👇 Anchoring Down: When the voyage was complete, I used docker-compose down to gracefully stop and remove my containers, along with their networks and volumes.
Task-2: Shared Storage Sorcery with Docker Volumes 🧙♂️
Volume Creation: Crafted a named volume to share data among multiple containers.
Conjuring Containers: Summoned containers using
docker run --mountto read and write to the shared volume.
Peek Inside the Magic: Used
docker execto check that each container could access the shared data.
Volume Listing: Listed all volumes with
docker volume lsto see my created volumes.
Cleanup Spell: When the testing was done,
docker volume rmhelped me clean up unused volumes.
Reflecting on Today's Learning 🌟
Today was all about ensuring our data's immortality with Docker volumes and crafting a network for our containers to thrive in. These tools are crucial for maintaining data beyond the container's lifecycle and for service interaction within our applications. 📚 #Day19 #DockerCompose #DevOpsEngineer #PersistentData #ContainerNetworking
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You can connect with me at: https://www.linkedin.com/in/davendersingh/