checker/Dockerfile.prod at main · fatcat/checker · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
# Network Checker - Production Dockerfile
# Clones from git repo at build time
#
# Build with: docker build -f Dockerfile.prod -t network-checker:latest .
# Or use: docker-compose -f docker-compose.prod.yaml build

ARG REPO_URL=https://github.com/fatcat/checker.git
ARG REPO_BRANCH=main

# Build stage
FROM ruby:3.3-slim AS builder

ARG REPO_URL
ARG REPO_BRANCH

# Install build dependencies + git
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libsqlite3-dev \
    git \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Clone the repository
RUN git clone --depth 1 --branch ${REPO_BRANCH} ${REPO_URL} .

# Install gems
RUN bundle config set --local deployment 'true' && \
    bundle config set --local without 'development test' && \
    bundle config set --local path 'vendor/bundle' && \
    bundle install --jobs 4

# Runtime stage
FROM ruby:3.3-slim

ARG REPO_URL
ARG REPO_BRANCH

# Install runtime dependencies
# - libsqlite3-0: database
# - iputils-ping: ping command for ICMP tests
# - dnsutils: dig/nslookup for DNS tests
# - git: for cloning repo
RUN apt-get update && apt-get install -y --no-install-recommends \
    libsqlite3-0 \
    iputils-ping \
    dnsutils \
    curl \
    git \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user for security
RUN groupadd -g 1000 checker && \
    useradd -u 1000 -g checker -s /bin/sh -m checker

WORKDIR /app

# Clone the repository (for application code)
RUN git clone --depth 1 --branch ${REPO_BRANCH} ${REPO_URL} . && \
    rm -rf .git

# Copy gems from builder
COPY --from=builder /app/vendor/bundle ./vendor/bundle

# Set ownership
RUN chown -R checker:checker /app

# Create directories for persistent data
RUN mkdir -p /data/db /data/log && \
    chown -R checker:checker /data

# Environment variables
ENV RACK_ENV=production \
    DATABASE_PATH=/data/db/checker.sqlite3 \
    LOG_DIR=/data/log \
    PORT=9292

# Switch to non-root user
USER checker

# Configure bundler for deployment (run as checker user)
RUN bundle config set --local deployment 'true' && \
    bundle config set --local without 'development test' && \
    bundle config set --local path 'vendor/bundle'

# Expose port
EXPOSE 9292

# Health check
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD curl -f http://localhost:9292/health || exit 1

# Start the application
CMD ["bundle", "exec", "puma", "-C", "-", "-b", "tcp://0.0.0.0:9292", "config.ru"]