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Add dockerfile to run emit_measurements and kafka (#56)
* Add dockerfile to run emit_measurements and kafka
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target/ | ||
.git/ | ||
.gitignore | ||
Dockerfile | ||
.dockerignore | ||
**/*.rs.bk |
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# This file builds an image that runs Kakfa and the emit_measurments.rs scripts for generating fake data | ||
# | ||
# docker build -t emgeee/kafka_emit_measurements:latest . | ||
# | ||
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# Stage 1: Build the Rust application | ||
FROM rust:1.81.0-slim-bookworm AS builder | ||
WORKDIR /usr/src/app | ||
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# Install build dependencies and zig | ||
RUN apt-get update && apt-get install -y \ | ||
cmake \ | ||
g++ \ | ||
libssl-dev \ | ||
pkg-config \ | ||
wget \ | ||
xz-utils \ | ||
&& wget https://ziglang.org/download/0.13.0/zig-linux-x86_64-0.13.0.tar.xz \ | ||
&& tar -xf zig-linux-x86_64-0.13.0.tar.xz \ | ||
&& mv zig-linux-x86_64-0.13.0 /usr/local/zig \ | ||
&& rm zig-linux-x86_64-0.13.0.tar.xz \ | ||
&& rm -rf /var/lib/apt/lists/* | ||
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# Add zig to PATH | ||
ENV PATH="/usr/local/zig/:$PATH" | ||
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# Install cargo-zigbuild | ||
RUN cargo install --locked cargo-zigbuild && \ | ||
rustup target add x86_64-unknown-linux-musl | ||
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# Copy and build | ||
COPY . . | ||
RUN cargo zigbuild --target x86_64-unknown-linux-musl --release --example emit_measurements && \ | ||
cp target/x86_64-unknown-linux-musl/release/examples/emit_measurements /tmp/ && \ | ||
rm -rf /usr/src/app/* | ||
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# Stage 2: Final image with Kafka and Rust binary | ||
FROM confluentinc/cp-kafka:7.5.1 | ||
USER root | ||
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# Install minimal dependencies | ||
RUN yum update -y && \ | ||
yum install -y openssl-devel && \ | ||
yum clean all && \ | ||
rm -rf /var/cache/yum | ||
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# Copy only the binary from builder stage | ||
COPY --from=builder /tmp/emit_measurements /usr/local/bin/ | ||
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# Create startup script | ||
COPY <<EOF /startup.sh | ||
#!/bin/bash | ||
# Generate Cluster ID if not provided | ||
CLUSTER_ID=\${CLUSTER_ID:-\$(kafka-storage random-uuid)} | ||
echo "Using Cluster ID: \$CLUSTER_ID" | ||
export CLUSTER_ID | ||
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# Format storage directory | ||
echo "Formatting storage directory..." | ||
kafka-storage format -t \$CLUSTER_ID -c /etc/kafka/kraft/server.properties | ||
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# Start Kafka with KRaft | ||
/etc/confluent/docker/run & | ||
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# Wait for Kafka to be ready | ||
until kafka-topics --bootstrap-server localhost:9092 --list &>/dev/null; do | ||
echo "Waiting for Kafka to be ready..." | ||
sleep 5 | ||
done | ||
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# Create topics with 1GB retention | ||
echo "Creating temperature topic..." | ||
kafka-topics --bootstrap-server localhost:9092 --create --if-not-exists --topic temperature --partitions 1 --replication-factor 1 --config retention.bytes=1073741824 | ||
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echo "Creating humidity topic..." | ||
kafka-topics --bootstrap-server localhost:9092 --create --if-not-exists --topic humidity --partitions 1 --replication-factor 1 --config retention.bytes=1073741824 | ||
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# Start the Rust application | ||
/usr/local/bin/emit_measurements | ||
EOF | ||
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RUN chmod +x /startup.sh | ||
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# Kafka configuration | ||
ENV KAFKA_NODE_ID=1 \ | ||
KAFKA_PROCESS_ROLES=broker,controller \ | ||
KAFKA_LISTENERS=PLAINTEXT://:9092,CONTROLLER://:9093 \ | ||
KAFKA_CONTROLLER_LISTENER_NAMES=CONTROLLER \ | ||
KAFKA_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT \ | ||
KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://localhost:9092 \ | ||
KAFKA_CONTROLLER_QUORUM_VOTERS=1@localhost:9093 \ | ||
KAFKA_INTER_BROKER_LISTENER_NAME=PLAINTEXT \ | ||
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1 \ | ||
KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR=1 \ | ||
KAFKA_TRANSACTION_STATE_LOG_MIN_ISR=1 | ||
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# Expose Kafka port | ||
EXPOSE 9092 | ||
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CMD ["/startup.sh"] |
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