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devpi image
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Devpi Server Docker image

This repo contains a docker image for the devpi PyPI server
along with the configuration files needed for the deployment on Google Container Engine (Kubernetes).
The built image is available on Docker Hub: fyndiq/docker-devpi

Running on Google Container Engine

The configuration for Kubernetes is stored in the devpi-app.yaml file. By default
a private pypi index will be created that requires HTTP Basic Authentication (via nginx)
to access it.

Configuration

The configuration is specified with the following environment variables:

  • DEVPI_SERVERDIR: Directory for server files (default: /data/server)
  • DEVPI_CLIENTDIR: Directory for client files (default: /data/client)
  • DEVPI_ROOT_PASSWORD: Password for root user (user who can create or
    modify indexes)
  • DEVPI_USER: Username
  • DEVPI_PASSWORD: Password
  • DEVPI_INDEX: Index name (default: dev. The index where custom packages can be uploaded)

The user credentials are stored in a Kubernetes secret.
Before creating one, an htpasswd file (for HTTP Basic Auth) needs to be generated:

htpasswd -bn testuser testpassword > htpasswd

Note that due to a issue with devpi-client,
the http auth and devpi auth credentials need to be the same.

The Kubernetes secret can be created with the following command:

kubectl create secret generic devpi \
    --from-literal=root-password=pleasechangeme \
    --from-literal=user=testuser \
    --from-literal=password=testpassword \
    --from-file=htpasswd

A configmap for nginx needs to be created (If you want to remove the authentication
part and run a publicly available index you can modify the config at this step):

kubectl create configmap nginx-conf --from-file=nginx.conf

To have persistent storage a Google Compute Disk needs to be created. It must
have the name devpi-disk.

gcloud compute disks create --size=10GB devpi-disk

Deployment

To deploy the service:

kubectl create -f devpi-app.yaml

To check the logs:

kubectl get pods  # to get the pod name e.g. "devpi-2096512311-3s8j2"
kubectl logs -f <pod_name>

To get the external ip address:

kubectl get services devpi

Testing the index

pip install -i http://testuser:testpassword@<external_ip>/testuser/dev/+simple/ --trusted-host <external_ip> Flask

To permanently use the new index create a ~/.pip/pip.conf file with the following content:

[global]
index-url = http://testuser:testpassword@<external_ip>/testuser/dev/+simple/
trusted-host = <external_ip>

Example: Building and uploading a Wheel for Pandas

The following example shows how to build a wheel for Pandas and upload it to the index. Make sure you have the devpi-client installed.

pip install cython  # Cython is required to build Pandas

git clone https://github.com/pydata/pandas.git
cd pandas
git checkout v0.16.2

devpi use http://testuser:testpassword@<external_ip>/testuser/dev
devpi login testuser --password=testpassword
devpi upload --formats bdist_wheel

Finally, test the installation by running:

pip install --no-cache --verbose Pandas==0.16.2    
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