---
title: "Franck Silvestre (@frncks) | Hashnode"
description: "Franck Silvestre (@frncks) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@frncks"
---

@frncks

# Franck Silvestre

@frncks · Joined August 2022

## Comments

[Hi Sergej, Thanks a lot for your article as it helped me fix several issues I've been struggling with for hours when trying to use to the 'docker image for SPFx 1.15.0' (https--hub.docker.com/r/m365pnp/spfx/) on Windows 10. As I'm new to docker (with WSL 2), I had a first issue (not mentioned in your article) to copy and install the trusted dev certificate: It is generated via 'gulp trust-dev-cert' but, since the command is run in the container, it's not generated under '/usr/app/spfx' but as '/home/spfx/.rushstack/rushstack-serve.pem' file! Therefore, to be able to install it on your host (Win10 cert store), it has to be converted as .cer file and copied first to the /usr/app/spfx' folder (which is mapped to the SPFx project folder in Win10) using the following command: openssl x509 -inform PEM -in ~/.rushstack/rushstack-serve.pem -outform DER -out ./spfx-dev-cert-docker.cer Once accessible from the project folder in Win10, import it into the user's Trusted Root Certification Authorities store. But that was not enough as I bumped into the 2nd issue dealing with the web part not available in the workbench (same problem as you mentioned in your article). Although that's a known issue with >=1.14.0 as reported on the 'docker m365pnp/spfx page' (https--hub.docker.com/r/m365pnp/spfx/), the proposed fix simply doesn't work (the ipAddress attribute does not exist)! After many tryouts, both fixes for 1.13.1 still applies: add "hostname": "0.0.0.0" in serve.json modifiy node\_modules\\@microsoft\\spfx-heft-plugins\\lib\\plugins\\webpackConfigurationPlugin\\WebpackConfigurationGenerator.js:408 (and not line 393) After these changes, the web part appears and run correctly in the workbench. Note: sorry for the links but I could not include any url in my comment (as I'm new Hashnode user) :-(](https://hashnode.com/posts/how-docker-containers-eliminate-spfx-environment-setup/620fc2628f26523301cb51df/comment/630d2c0743d7308e3e3287c6)

Comment · Article · Aug 29, 2022 · [How Docker containers eliminate SPFx environment setup](https://hashnode.com/posts/how-docker-containers-eliminate-spfx-environment-setup/620fc2628f26523301cb51df)