{Docker}
What do they do? Do we use them? Do we know them?
Lets find out!
# Hey
Containers are not VMs
# Why
...
| Containers | VMs |
|---|---|
| OS-level virtualization | Hardware-level virtualization |
| Lightweight, shares OS kernel | Heavier, full OS per instance |
| Efficient resource usage | Resource-intensive |
| Rapid deployment | Slower to start |
Architecture
# Yall still here
Some basic commands
# Yall still here
docker container ls
docker container ls -a
docker images ls
docker pull <image_name>
docker run [options] <image_name>
docker start <container_id or container_name>
docker stop <container_id or container_name>
docker exec [options] <container_id> <command>
Dockerfile
# Yall still here
# Build Stage
FROM golang:1.19-alpine3.16 AS builder
WORKDIR /app
COPY . .
RUN go build -o main main.go
# Run Stage
FROM alpine:3.16
WORKDIR /app
COPY --from=builder /app/main .
COPY app.env .
EXPOSE 8080
CMD [ "/app/main" ]Commands
# Yall still here
docker build -t quiz .
docker run -p 8080:8080 quiz
Docker 101
By Achintya Pranshu
