Share Dockerfile code with CodeThis

What you get

• Dockerfile-aware syntax highlighting via CodeMirror
• Instant shareable link — no signup required
• Optional expiration (7 days, 30 days, permanent)
• Password protection for private pastes
• Works with the REST API and MCP server
• Rich markdown and MDC components alongside code

Common use cases for Dockerfile pastes

• Multi-stage build examples
• Base image comparisons
• CI/CD demos
• Minimal container patterns

Example

FROM node:20-alpine AS builder
WORKDIR /app
COPY package.json pnpm-lock.yaml ./
RUN corepack enable && pnpm install --frozen-lockfile
COPY . .
RUN pnpm build

FROM node:20-alpine
WORKDIR /app
COPY --from=builder /app/.output ./
CMD ["node", "server/index.mjs"]