feat(neo4j): add installation instructions for neo4j (#3)

Author: rfprod

.github/workflows/validate-codeowners.yml

@@ -19,14 +19,14 @@ jobs:
     runs-on: ubuntu-latest
 
     outputs:
-      matrix: ${{ steps.codeowners.outputs.matrix }}
+      matrix: ${{ steps.get-codeowners.outputs.matrix }}
 
     steps:
       - name: Checkout sources
         uses: actions/checkout@v4
 
       - name: Get codeowners
-        id: codeowners
+        id: get-codeowners
         run: |
           RESULT=$(bash tools/actions/codeowners/codeowners.sh)
           echo "matrix=$RESULT" >> $GITHUB_OUTPUT

requirements.txt

@@ -1,5 +1,6 @@
 black
 python-dotenv
+tiktoken
 langchain
 langchain_community
 langchain-ollama

src/init.py

@@ -25,7 +25,7 @@
 vector_store = Neo4jVector.from_documents(
     documents=doc_splits,
     embedding=OllamaEmbeddings(
-        base_url="http://localhost:11434", model="llama3.2:latest"
+        base_url="http://localhost:11434", model="gemma2:latest"
     ),
     url=os.getenv("NEO4J_URL"),
     username=os.getenv("NEO4J_USER"),
@@ -46,7 +46,7 @@
 )
 
 llm = ChatOllama(
-    base_url="http://localhost:11434", model="llama3.2:latest", temperature=0
+    base_url="http://localhost:11434", model="gemma2:latest", temperature=0
 )
 
 rag_chain = prompt | llm | StrOutputParser()

tools/actions/codeowners/codeowners.sh

@@ -44,3 +44,5 @@ done
 OUTPUT=${OUTPUT::-1}
 
 OUTPUT+="]"
+
+echo "$OUTPUT"

tools/neo4j/install.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# https://debian.neo4j.com/
+sudo apt update
+wget -O - https://debian.neo4j.com/neotechnology.gpg.key | sudo apt-key add -
+echo 'deb https://debian.neo4j.com stable latest' | sudo tee /etc/apt/sources.list.d/neo4j.list
+sudo apt update
+
+sudo apt install neo4j -y
+sudo systemctl enable neo4j.service
+sudo systemctl start neo4j.service
+sudo systemctl status neo4j.service
+
+neo4j --version