From 19ecfc7155d99a836ce094c915f4e83b9e89867e Mon Sep 17 00:00:00 2001 From: Iliyan Vutoff Date: Sun, 15 Oct 2023 15:00:31 +0300 Subject: [PATCH 1/3] Simple Python Flask app --- .python-version | 1 + app/app.py | 12 ++++++++++++ app/app_test.py | 17 +++++++++++++++++ requirements.txt | 8 ++++++++ 4 files changed, 38 insertions(+) create mode 100644 .python-version create mode 100644 app/app.py create mode 100644 app/app_test.py create mode 100644 requirements.txt diff --git a/.python-version b/.python-version new file mode 100644 index 000000000..9919bf8c9 --- /dev/null +++ b/.python-version @@ -0,0 +1 @@ +3.10.13 diff --git a/app/app.py b/app/app.py new file mode 100644 index 000000000..5e4513f07 --- /dev/null +++ b/app/app.py @@ -0,0 +1,12 @@ +from flask import Flask + +app = Flask(__name__) + + +@app.route("/") +def hello_world(): + return "Hello, World!" + + +if __name__ == "__main__": + app.run() diff --git a/app/app_test.py b/app/app_test.py new file mode 100644 index 000000000..a1b1bacb2 --- /dev/null +++ b/app/app_test.py @@ -0,0 +1,17 @@ +import unittest + +from app import app + + +class TestApp(unittest.TestCase): + def setUp(self): + self.client = app.test_client() + + def test_hello_world(self): + response = self.client.get("/") + self.assertEqual(response.status_code, 200) + self.assertEqual(response.data, b"Hello, World!") + + +if __name__ == "__main__": + unittest.main() diff --git a/requirements.txt b/requirements.txt new file mode 100644 index 000000000..75cb9a31a --- /dev/null +++ b/requirements.txt @@ -0,0 +1,8 @@ +blinker==1.6.3 ; python_version >= "3.10" and python_version < "4.0" +click==8.1.7 ; python_version >= "3.10" and python_version < "4.0" +colorama==0.4.6 ; python_version >= "3.10" and python_version < "4.0" and platform_system == "Windows" +flask==3.0.0 ; python_version >= "3.10" and python_version < "4.0" +itsdangerous==2.1.2 ; python_version >= "3.10" and python_version < "4.0" +jinja2==3.1.2 ; python_version >= "3.10" and python_version < "4.0" +markupsafe==2.1.3 ; python_version >= "3.10" and python_version < "4.0" +werkzeug==3.0.0 ; python_version >= "3.10" and python_version < "4.0" From 6549d8a1241f944eb0243bb0025efaf3fd486d95 Mon Sep 17 00:00:00 2001 From: Iliyan Vutoff Date: Wed, 25 Oct 2023 17:59:51 +0300 Subject: [PATCH 2/3] Make listen port configurable via ENV variable Use env var PORT to specify listen port. --- app/app.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/app/app.py b/app/app.py index 5e4513f07..3a06f8f5e 100644 --- a/app/app.py +++ b/app/app.py @@ -1,3 +1,5 @@ +import os + from flask import Flask app = Flask(__name__) @@ -9,4 +11,4 @@ def hello_world(): if __name__ == "__main__": - app.run() + app.run(port=os.environ.get("PORT", 5000)) From 1dd2813b1e76ca62f79d2950773b5d67e6e78cc0 Mon Sep 17 00:00:00 2001 From: vstojkov Date: Wed, 25 Oct 2023 22:45:59 +0300 Subject: [PATCH 3/3] Created Dockerfile and fixed typo fix in main flask app --- Dockerfile | 14 ++++++++++++++ README.md | 31 ++++++++++++++++++++++++++++++- app/app.py | 3 ++- 3 files changed, 46 insertions(+), 2 deletions(-) create mode 100644 Dockerfile diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 000000000..fb769a074 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,14 @@ +FROM ubuntu:22.04 +RUN useradd -u 1001 testuser +RUN apt-get update \ + && apt-get install python3 python3-pip -y \ + && mkdir /app/ \ + && mkdir /req/ +ADD requirements.txt /req/ +RUN pip install -r /req/requirements.txt +ADD app /app +EXPOSE 5000 +# Use this user here, because of permissions +USER testuser +ENTRYPOINT ["python3"] +CMD ["/app/app.py"] \ No newline at end of file diff --git a/README.md b/README.md index d19dfd95a..4d94754d2 100644 --- a/README.md +++ b/README.md @@ -1 +1,30 @@ -# devops-programme \ No newline at end of file +# devops-programme + +## How to build it on Ubuntu 22.04 LTS +```bash +$ sudo docker build -t test:v0.1 . + +... +Successfully built 14fd734fcfc3 +Successfully tagged test:v0.1 + +$ sudo docker images +REPOSITORY TAG IMAGE ID CREATED SIZE +test v0.1 14fd734fcfc3 5 minutes ago 476MB +``` + +## How to run it on Ubuntu 22.04 LTS +```bash +$ sudo docker build -t test:v0.1 . +2ff974622935c628227b58162eba6445d22cbba9272bd35a4f2dbe4992dd7a6e + +$ sudo docker ps -a +CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES +2ff974622935 test:v0.1 "python3 /app/app.py" 4 minutes ago Up 4 minutes 0.0.0.0:5000->5000/tcp, :::5000->5000/tcp nifty_bose + +$ netstat -nltp | grep 5000 +tcp 0 0 0.0.0.0:5000 0.0.0.0:* LISTEN - + +$ curl http://127.0.0.1:5000/ +Hello, World! +``` diff --git a/app/app.py b/app/app.py index 3a06f8f5e..6369f136f 100644 --- a/app/app.py +++ b/app/app.py @@ -11,4 +11,5 @@ def hello_world(): if __name__ == "__main__": - app.run(port=os.environ.get("PORT", 5000)) + # Allow running on localhost + app.run(debug=True, host='0.0.0.0', port=os.environ.get("PORT", 5000))