Simple service with posting client ip to postgre
parent
f7d04a4f13
commit
ac880ad719
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FROM python:3.8-slim-buster
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COPY ./requirements.txt /app/requirements.txt
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RUN pip install --no-cache-dir -r /app/requirements.txt
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EXPOSE 5000
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COPY ./connector.py ./app/connector.py
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WORKDIR /app
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ENTRYPOINT ["python","connector.py"]
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from flask import Flask, request
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from flask_sqlalchemy import SQLAlchemy
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import os
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app = Flask(__name__)
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def get_env_variable(name):
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try:
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return os.environ[name]
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except KeyError:
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message = "Expected environment variable '{}' not set.".format(name)
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raise Exception(message)
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# the values of those depend on your setup
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POSTGRES_URL = get_env_variable("POSTGRES_URL")
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POSTGRES_USER = get_env_variable("POSTGRES_USER")
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POSTGRES_PW = get_env_variable("POSTGRES_PW")
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POSTGRES_DB = get_env_variable("POSTGRES_DB")
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DB_URL = 'postgresql+psycopg2://{user}:{pw}@{url}/{db}'.format(user=POSTGRES_USER, pw=POSTGRES_PW, url=POSTGRES_URL,
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db=POSTGRES_DB)
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app.config['SQLALCHEMY_DATABASE_URI'] = DB_URL
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False # silence the deprecation warning
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db = SQLAlchemy(app)
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class Clients(db.Model):
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_tablename__ = 'clients'
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id = db.Column(db.Integer, primary_key=True)
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userip = db.Column(db.String(12))
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@app.route("/")
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def hello():
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if 'X-Forwarded-For' in request.headers:
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proxy_data = request.headers['X-Forwarded-For']
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ip_list = proxy_data.split(',')
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user_ip = ip_list[0] # first address in list is User IP
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else:
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user_ip = request.remote_addr # For local development
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print(user_ip)
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dropalch(user_ip)
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return "Sup World!"
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def dropalch(user_ip):
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newip = Clients(userip=user_ip)
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db.session.add(newip)
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db.session.commit()
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if __name__ == '__main__':
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app.run(host='0.0.0.0')
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@ -0,0 +1,34 @@
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- name: Install bitnami repo
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hosts: localhost
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vars:
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helm_chart_url: "https://charts.bitnami.com/bitnami"
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tasks:
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- name: Add helm repo
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kubernetes.core.helm_repository:
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name: bitnami
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repo_url: "{{ helm_chart_url }}"
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- name: Install PostgreSQL from bitnami
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hosts: localhost
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vars:
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postgre_version: "12.2.3"
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tasks:
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- name: Install PostgreSQL Chart
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kubernetes.core.helm:
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name: posrgre
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namespace: test
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force: true
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chart_ref: bitnami/postgresql
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chart_version: "{{ postgre_version }}"
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set_values:
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- value: auth.database=mydb
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value_type: string
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- value: primary.initdb.scripts={"init.sql":"CREATE TABLE clients(id SERIAL PRIMARY KEY, userip CHAR(12));"}
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value_type: json
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- name: playground
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kubernetes.core.helm:
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name: playground
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namespace: test
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force: true
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chart_ref: playgroud
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chart_version: "0.1.3"
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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*.orig
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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.vscode/
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apiVersion: v2
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name: playgroud
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description: A Helm chart for Kubernetes
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# A chart can be either an 'application' or a 'library' chart.
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#
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# Application charts are a collection of templates that can be packaged into versioned archives
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# to be deployed.
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#
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# Library charts provide useful utilities or functions for the chart developer. They're included as
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# a dependency of application charts to inject those utilities and functions into the rendering
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# pipeline. Library charts do not define any templates and therefore cannot be deployed.
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type: application
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# This is the chart version. This version number should be incremented each time you make changes
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# to the chart and its templates, including the app version.
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# Versions are expected to follow Semantic Versioning (https://semver.org/)
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version: 0.1.3
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# This is the version number of the application being deployed. This version number should be
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# incremented each time you make changes to the application. Versions are not expected to
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# follow Semantic Versionindg. They should reflect the version the application is using.
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# It is recommended to use it with quotes.
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appVersion: "1.16.0"
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1. Get the application URL by running these commands:
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{{- if .Values.ingress.enabled }}
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{{- range $host := .Values.ingress.hosts }}
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{{- range .paths }}
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http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
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{{- end }}
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{{- end }}
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{{- else if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "playgroud.fullname" . }})
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export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
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echo http://$NODE_IP:$NODE_PORT
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{{- else if contains "LoadBalancer" .Values.service.type }}
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NOTE: It may take a few minutes for the LoadBalancer IP to be available.
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You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "playgroud.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "playgroud.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
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echo http://$SERVICE_IP:{{ .Values.service.port }}
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{{- else if contains "ClusterIP" .Values.service.type }}
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export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "playgroud.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
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export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
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{{- end }}
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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "playgroud.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "playgroud.fullname" -}}
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{{- if .Values.fullnameOverride }}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- $name := default .Chart.Name .Values.nameOverride }}
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{{- if contains $name .Release.Name }}
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{{- .Release.Name | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "playgroud.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Common labels
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*/}}
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{{- define "playgroud.labels" -}}
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helm.sh/chart: {{ include "playgroud.chart" . }}
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{{ include "playgroud.selectorLabels" . }}
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{{- if .Chart.AppVersion }}
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app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
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{{- end }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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{{- end }}
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{{/*
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Selector labels
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*/}}
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{{- define "playgroud.selectorLabels" -}}
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app.kubernetes.io/name: {{ include "playgroud.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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{{- end }}
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{{/*
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Create the name of the service account to use
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*/}}
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{{- define "playgroud.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create }}
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{{- default (include "playgroud.fullname" .) .Values.serviceAccount.name }}
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{{- else }}
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{{- default "default" .Values.serviceAccount.name }}
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{{- end }}
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{{- end }}
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ include "playgroud.fullname" . }}
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labels:
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{{- include "playgroud.labels" . | nindent 4 }}
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spec:
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{{- if not .Values.autoscaling.enabled }}
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replicas: {{ .Values.replicaCount }}
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{{- end }}
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selector:
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matchLabels:
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{{- include "playgroud.selectorLabels" . | nindent 6 }}
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template:
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metadata:
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{{- with .Values.podAnnotations }}
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annotations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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labels:
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{{- include "playgroud.selectorLabels" . | nindent 8 }}
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spec:
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{{- with .Values.imagePullSecrets }}
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imagePullSecrets:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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serviceAccountName: {{ include "playgroud.serviceAccountName" . }}
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securityContext:
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{{- toYaml .Values.podSecurityContext | nindent 8 }}
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containers:
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- name: {{ .Chart.Name }}
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securityContext:
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{{- toYaml .Values.securityContext | nindent 12 }}
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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env:
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- name: "POSTGRES_PW"
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valueFrom:
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secretKeyRef:
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key: postgres-password
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name: posrgre-postgresql
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- name: "POSTGRES_URL"
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value: {{ .Values.env.POSTGRES_URL }}
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- name: "POSTGRES_DB"
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value: {{ .Values.env.POSTGRES_DB }}
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- name: "POSTGRES_USER"
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value: {{ .Values.env.POSTGRES_USER }}
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ports:
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- name: http
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containerPort: {{ .Values.service.containerPort }}
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protocol: TCP
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livenessProbe:
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httpGet:
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path: /
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port: http
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readinessProbe:
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httpGet:
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path: /
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port: http
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resources:
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{{- toYaml .Values.resources | nindent 12 }}
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{{- with .Values.nodeSelector }}
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nodeSelector:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with .Values.affinity }}
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affinity:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with .Values.tolerations }}
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tolerations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- if .Values.autoscaling.enabled }}
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apiVersion: autoscaling/v2beta1
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kind: HorizontalPodAutoscaler
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metadata:
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name: {{ include "playgroud.fullname" . }}
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labels:
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{{- include "playgroud.labels" . | nindent 4 }}
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spec:
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scaleTargetRef:
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apiVersion: apps/v1
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kind: Deployment
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name: {{ include "playgroud.fullname" . }}
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minReplicas: {{ .Values.autoscaling.minReplicas }}
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maxReplicas: {{ .Values.autoscaling.maxReplicas }}
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metrics:
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{{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
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- type: Resource
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resource:
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name: cpu
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targetAverageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
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{{- end }}
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{{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
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- type: Resource
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resource:
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name: memory
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targetAverageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
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{{- end }}
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{{- end }}
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@ -0,0 +1,61 @@
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{{- if .Values.ingress.enabled -}}
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{{- $fullName := include "playgroud.fullname" . -}}
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{{- $svcPort := .Values.service.port -}}
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{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
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{{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
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{{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
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{{- end }}
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{{- end }}
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{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
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apiVersion: networking.k8s.io/v1
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{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
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apiVersion: networking.k8s.io/v1beta1
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{{- else -}}
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apiVersion: extensions/v1beta1
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{{- end }}
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kind: Ingress
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metadata:
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name: {{ $fullName }}
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labels:
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{{- include "playgroud.labels" . | nindent 4 }}
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{{- with .Values.ingress.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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spec:
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{{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
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ingressClassName: {{ .Values.ingress.className }}
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{{- end }}
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{{- if .Values.ingress.tls }}
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tls:
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{{- range .Values.ingress.tls }}
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- hosts:
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{{- range .hosts }}
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- {{ . | quote }}
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{{- end }}
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secretName: {{ .secretName }}
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{{- end }}
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{{- end }}
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rules:
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{{- range .Values.ingress.hosts }}
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- host: {{ .host | quote }}
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http:
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paths:
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{{- range .paths }}
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- path: {{ .path }}
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{{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
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pathType: {{ .pathType }}
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{{- end }}
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backend:
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{{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
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service:
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name: {{ $fullName }}
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port:
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number: {{ $svcPort }}
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{{- else }}
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serviceName: {{ $fullName }}
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servicePort: {{ $svcPort }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{- end }}
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apiVersion: v1
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kind: Service
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metadata:
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name: {{ include "playgroud.fullname" . }}
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labels:
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{{- include "playgroud.labels" . | nindent 4 }}
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spec:
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type: {{ .Values.service.type }}
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ports:
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- port: {{ .Values.service.port }}
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targetPort: http
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protocol: TCP
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name: http
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selector:
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{{- include "playgroud.selectorLabels" . | nindent 4 }}
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{{- if .Values.serviceAccount.create -}}
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: {{ include "playgroud.serviceAccountName" . }}
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labels:
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{{- include "playgroud.labels" . | nindent 4 }}
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{{- with .Values.serviceAccount.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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{{- end }}
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apiVersion: v1
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kind: Pod
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metadata:
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name: "{{ include "playgroud.fullname" . }}-test-connection"
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labels:
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{{- include "playgroud.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": test
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spec:
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containers:
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- name: wget
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image: busybox
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command: ['wget']
|
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args: ['{{ include "playgroud.fullname" . }}:{{ .Values.service.port }}']
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restartPolicy: Never
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@ -0,0 +1,87 @@
|
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# Default values for playgroud.
|
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# This is a YAML-formatted file.
|
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# Declare variables to be passed into your templates.
|
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|
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replicaCount: 1
|
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|
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image:
|
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repository: ruschecker/playground
|
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pullPolicy: Always
|
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# Overrides the image tag whose default is the chart appVersion.
|
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tag: latest
|
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|
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imagePullSecrets: []
|
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nameOverride: ""
|
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fullnameOverride: ""
|
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|
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serviceAccount:
|
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# Specifies whether a service account should be created
|
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create: true
|
||||
# Annotations to add to the service account
|
||||
annotations: {}
|
||||
# The name of the service account to use.
|
||||
# If not set and create is true, a name is generated using the fullname template
|
||||
name: ""
|
||||
|
||||
podAnnotations: {}
|
||||
|
||||
podSecurityContext: {}
|
||||
# fsGroup: 2000
|
||||
|
||||
securityContext: {}
|
||||
# capabilities:
|
||||
# drop:
|
||||
# - ALL
|
||||
# readOnlyRootFilesystem: true
|
||||
# runAsNonRoot: true
|
||||
# runAsUser: 1000
|
||||
|
||||
service:
|
||||
type: ClusterIP
|
||||
port: 80
|
||||
containerPort: 5000
|
||||
|
||||
ingress:
|
||||
enabled: true
|
||||
className: "traefik"
|
||||
annotations: {}
|
||||
# kubernetes.io/ingress.class: nginx
|
||||
# kubernetes.io/tls-acme: "true"
|
||||
hosts:
|
||||
- host: playground.local
|
||||
paths:
|
||||
- path: /
|
||||
pathType: ImplementationSpecific
|
||||
tls: []
|
||||
# - secretName: chart-example-tls
|
||||
# hosts:
|
||||
# - chart-example.local
|
||||
|
||||
resources: {}
|
||||
# We usually recommend not to specify default resources and to leave this as a conscious
|
||||
# choice for the user. This also increases chances charts run on environments with little
|
||||
# resources, such as Minikube. If you do want to specify resources, uncomment the following
|
||||
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
|
||||
# limits:
|
||||
# cpu: 100m
|
||||
# memory: 128Mi
|
||||
# requests:
|
||||
# cpu: 100m
|
||||
# memory: 128Mi
|
||||
|
||||
autoscaling:
|
||||
enabled: false
|
||||
minReplicas: 1
|
||||
maxReplicas: 100
|
||||
targetCPUUtilizationPercentage: 80
|
||||
# targetMemoryUtilizationPercentage: 80
|
||||
|
||||
nodeSelector: {}
|
||||
|
||||
tolerations: []
|
||||
|
||||
affinity: {}
|
||||
env:
|
||||
POSTGRES_URL: posrgre-postgresql
|
||||
POSTGRES_USER: postgres
|
||||
POSTGRES_DB: mydb
|
@ -0,0 +1,3 @@
|
||||
Flask
|
||||
flask_sqlalchemy
|
||||
psycopg2-binary
|
Loading…
Reference in New Issue