Switch CMD to python loop. Make host an environment variable

.dockerignore

@@ -0,0 +1,2 @@
+tests
+cache

Dockerfile

@@ -18,4 +18,4 @@ COPY . /app
 # easter eggs 😝
 RUN echo "PS1='🕵️:\[\033[1;36m\]\h \[\033[1;34m\]\W\[\033[0;35m\]\[\033[1;36m\]$ \[\033[0m\]'" >> ~/.bashrc
 
-CMD ["/bin/bash"]
+CMD [ "python", "run.py"]

Tiltfile

@@ -11,7 +11,7 @@ k8s_yaml(secret_from_dict("mev-inspect-db-credentials", inputs = {
     "password": "password",
 }))
 
-docker_build('mev-inspect', '.',
+docker_build('mev-inspect-py', '.',
     live_update=[
         sync('.', '/app'),
         run('cd /app && poetry install',

k8s/app.yaml

@@ -16,9 +16,8 @@ spec:
     spec:
       containers:
       - name: mev-inspect
-        image: mev-inspect:latest
-        command: [ "/bin/bash", "-c", "--" ]
-        args: [ "while true; do sleep 30; done;" ]
+        image: mev-inspect-py
+        command: [ "python", "run.py"]
         env:
         - name: POSTGRES_USER
           valueFrom:
@@ -30,6 +29,8 @@ spec:
             secretKeyRef:
               name: mev-inspect-db-credentials
               key: password
+        - name: POSTGRES_HOST
+          value: postgresql
         livenessProbe:
           exec:
             command:

mev_inspect/db.py

@@ -7,9 +7,9 @@ from sqlalchemy.orm import sessionmaker
 def get_sqlalchemy_database_uri():
     username = os.getenv("POSTGRES_USER")
     password = os.getenv("POSTGRES_PASSWORD")
-    server = "postgresql"
+    host = os.getenv("POSTGRES_HOST")
     db_name = "mev_inspect"
-    return f"postgresql://{username}:{password}@{server}/{db_name}"
+    return f"postgresql://{username}:{password}@{host}/{db_name}"
 
 
 def get_engine():

run.py

@@ -0,0 +1,5 @@
+import time
+
+if __name__ == "__main__":
+    while True:
+        time.sleep(30)