CODEWITHSUNDEEP
dockerkubernetes
him229
him229

Reputation: 1444

How do I dynamically set the working directory at runtime by passing an env variable?

Here's what my Dockerfile looks like for an image I'm creating.

FROM python:3.7-alpine
COPY requirements.txt /
RUN pip install -r /requirements.txt
ENV U_PATH="a"
WORKDIR $U_PATH

I override the env variable U_PATH when I call it using docker run -it -e U_PATH=/mnt temp:v1 /bin/sh but the WORKDIR is set during build time and I cannot change that during runtime.

Is there any way to dynamically set the working directory at runtime by passing an env variable?

Upvotes: 1

Views: 2706

Answers (1)

mdaniel
mdaniel

Reputation: 33203

While not an environment variable, don't forget you can alter the working directory of a Pod's container via the workingDir: PodSpec field

containers:
- name: foo
  image: 'temp:v1'
  workingDir: /mnt

Upvotes: 3

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