lec starter

lec/26-cassandra/Dockerfile

+FROM ubuntu:22.04
+RUN apt-get update; apt-get install -y wget curl openjdk-17-jdk python3-pip iproute2
+
+# Python stuff
+RUN pip3 install cassandra-driver==3.28.0 grpcio==1.58.0 grpcio-tools==1.58.0 jupyterlab==4.3.6
+
+# SPARK
+RUN wget https://dlcdn.apache.org/spark/spark-3.5.5/spark-3.5.5-bin-hadoop3.tgz && \
+    tar -xf spark-3.5.5-bin-hadoop3.tgz && \
+    rm spark-3.5.5-bin-hadoop3.tgz
+
+# CASSANDRA
+RUN wget https://archive.apache.org/dist/cassandra/5.0.0/apache-cassandra-5.0.0-bin.tar.gz; tar -xf apache-cassandra-5.0.0-bin.tar.gz; rm apache-cassandra-5.0.0-bin.tar.gz
+
+ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
+ENV PATH="${PATH}:/apache-cassandra-5.0.0/bin:/spark-3.4.1-bin-hadoop3.2/bin"
+
+COPY cassandra.sh /cassandra.sh
+CMD ["sh", "/cassandra.sh"]

lec/26-cassandra/cassandra.sh

+echo "-Xms128M" >> /apache-cassandra-5.0.0/conf/jvm-server.options
+echo "-Xmx128M" >> /apache-cassandra-5.0.0/conf/jvm-server.options
+
+# get the environment variable
+PROJECT=${PROJECT}
+
+sed -i "s/^listen_address:.*/listen_address: "`hostname`"/" /apache-cassandra-5.0.0/conf/cassandra.yaml
+sed -i "s/^rpc_address:.*/rpc_address: "`hostname`"/" /apache-cassandra-5.0.0/conf/cassandra.yaml
+sed -i "s/- seeds:.*/- seeds: ${PROJECT}-db-1,${PROJECT}-db-2,${PROJECT}-db-3/" /apache-cassandra-5.0.0/conf/cassandra.yaml
+
+/apache-cassandra-5.0.0/bin/cassandra -R
+sleep infinity

lec/26-cassandra/docker-compose.yml

+name: ${PROJECT}
+
+services:
+    db:
+        image: ${PROJECT}-base
+        hostname: db
+        volumes:
+            - "./src:/src"
+        deploy:
+            replicas: 3
+            resources:
+                limits:
+                    memory: 2.5G
+        environment:
+            - PROJECT=${PROJECT}

p6/Dockerfile.cassandra

-FROM ubuntu:22.04
+FROM ubuntu:24.04
 RUN apt-get update; apt-get install -y wget curl openjdk-17-jdk python3-pip net-tools lsof vim unzip
 
 # Python stuff
@@ -9,7 +9,9 @@ COPY requirements.txt /requirements.txt
 RUN pip3 install -r /requirements.txt
 
 # SPARK
-RUN wget https://archive.apache.org/dist/spark/spark-3.4.1/spark-3.4.1-bin-hadoop3.tgz && tar -xf spark-3.4.1-bin-hadoop3.tgz && rm spark-3.4.1-bin-hadoop3.tgz
+RUN wget https://dlcdn.apache.org/spark/spark-3.5.5/spark-3.5.5-bin-hadoop3.tgz && \
+    tar -xf spark-3.5.5-bin-hadoop3.tgz && \
+    rm spark-3.5.5-bin-hadoop3.tgz
 
 # CASSANDRA
 RUN wget https://archive.apache.org/dist/cassandra/5.0.0/apache-cassandra-5.0.0-bin.tar.gz; tar -xf apache-cassandra-5.0.0-bin.tar.gz; rm apache-cassandra-5.0.0-bin.tar.gz