My Shitty Code

Embracing the Messiness in Search of Epic Solutions

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Welcome to my encyclopedia of shitty code!

  • GCP + Terraform: “google: could not find default credentials” Error

    PROBLEM When running any Terraform commands (init, plan, etc) from a different server, the following error is thrown:- SOLUTION One recommended way is to set up a service account by following the instruction from the above link. Another way, for developement purpose, is to install Google Cloud SDK and run the following gcloud command, which […] Read More…

  • Terraform: “Error acquiring the state lock” Error

    PROBLEM When running terraform plan, the following error is thrown:- SOLUTION One way is to disable locking by passing -lock=false flag. However, if you are sure the lock isn’t properly released, to perform a force unlock, run this command: In this case… Read More…

  • Webpack: Managing Tree Shaking

    PROBLEM Sometimes, Webpack’s tree-shaking may accidentally eliminate imported code from import statements. For example, we may have a root JS file that imports a CSS file:- … and for some reason, the CSS file will never appear in the final bundle even if the Webpack config contains proper rules to handle CSS files. SOLUTION To […] Read More…

  • Azure: Deploying WAR File to Tomcat

    PROBLEM Typically, when using ZipDeploy to push a WAR file (ex: my-app.war) to an Azure instance, we need to:- This zip file will automatically be unzipped under site/wwwroot:- Tomcat detects ROOT.war and will try to unpack the WAR file under ROOT/:- The problem is sometimes Tomcat is unable to fully unpack ROOT.war because some files […] Read More…

  • Feign + Eureka: UnknownHostException when Attempting to Invoke a Service

    PROBLEM When attempting use Feign to invoke a service through Eureka, the following exception occurs:- SOLUTION Go to the donkey-kong-service app and add the following line to the application.properties:- Now, when Feign tries to invoke the service, the IP address will be used instead of the OS’ reported hostname. Read More…

  • Spring Boot: Restarting App using Dev Tools with IntelliJ IDEA

    Spring Boot provides spring-boot-devtools module that allows the app to “smartly” restart whenever the files on the classpath have changed. Because the rarely changed classes (ex: 3rd party JARs) are separated out into a different classloader from the app’s actively developed classes’ classloader, it allows Spring Boot to quickly restart the app compared to “cold […] Read More…

  • Spring Boot: Connecting to IBM MQ over JMS using non-IBM JRE

    There are several ways to connect to IBM MQ:- This article shows you how to connect with Spring’s JmsTemplate. CONNECTIVITY INFO Typically, the MQ admin will provide the following connectivity info that allows you to connect to MQ:- DEPENDENCY Add the following dependency:- SPRING CONFIGURATION While the connectivity info can be hardcoded in Spring Boot’s […] Read More…

  • React: Debugging Layout Thrashing

    PROBLEM When the React app grows larger over time, it is highly likely to run into situations where the component keeps re-rendering for no apparent reason. There are many reasons why this is happening… to name a few…. parent component re-renders, this.props or this.state has changed, etc. The key is to quickly find out what […] Read More…

  • Groovy: Handling Byte Order Marks When Reading a File

    PROBLEM Given a file with the following content:- When reading the file:- … the following values are printed:- Even though the value is trimmed, there is still a leading space in front of text. A further inspection reveals the leading space is not a regular space:- SOLUTION Some editors prepend a special Unicode character called […] Read More…

About Author

This author has 20+ years of experience in software engineering and cloud engineering. In an industry where knowledge becomes obsolete in the next three months, he learns anything that crosses his path with no mercy. He codes Java while drinking Espresso and writes Spock specifications while listening to Groovy beats. He masters Google Cloud Platform just like he masters the art of predicting the movement of dark clouds over his backyard, where 60% of the time, he is right every time.

This author suffers from the Dunning-Kruger effect, where he overestimates his competence and underestimates his ignorance. Technology buzzwords never scare him, for he does not know what to be afraid of in the first place. GCP, GCS, GCR, GKE, GWT, JWT… they all sound the same to him. This author is a jack of all trades but a master of none. He writes like he knows all the answers, yet he googles for better solutions from elsewhere. He fakes it until he makes it, and if he doesn’t, that’s okay because he has the attention span of a squirrel.

By now, you should know this author is full of shit, and he apologizes in advance if you are trying to solve your company’s real problems with his shitty solutions.