Upgrade Keycloak Standalone with Postgres from 16.1.0 to 17.0.0 with custom port behind nginx reverse proxy

What a nightmare. You’re using keycloak and are upgrading from Wildfly 16.1.0 to Quarkus 17.0.0. You’re also listening on a non-standard port, that isn’t 8080, but 23232. You’re using a reverse proxy like nginx for TLS and Keycloak is connected via plain http with nginx. Grab your standalone.xml found in /standalone/configuration/standalone.xml and find your postgres…

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centos 7 & mysql 5.7 gpg key error proper solution

If you’re running CentOS7 and using the MySQL 5.7 community rpm package you might’ve ran into this error response:

Seems like Oracle has changed their GPG key and it’s not uploaded to gpg servers yet, at least yum can’t find the new key. So you have to manually replace your key. Disabling gpgcheck is…

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ionic vue invalid host header solution

You’re doing ionic with vue and are receiving an invalid host header message, black letters on white background. Create a file vue.config.js in the project root and past this content:

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TypeError: Cannot read properties of null (reading ‘length’)

Being the Javascript newbie that I am… Javascript errors are still a mystery, more so if using Chrome/Chromium. With Firefox the error was actually more clear. TypeError: Cannot read properties of null (reading ‘length’) means you have a variable that you’re checking it’s property ‘length’ to be a certain value but the variable is null.…

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