buildpacks - rebase image to update based image to a new version

 

Directly replacing an image layer can be a bad idea especially when we're swapping out say the OS layer. As the OS remain untested with your application runtime that can be more of an issue than a feature. 

With a dockerfile that builds your application, you'll typically goes through the entire cycle of build your application and ensuring there's no compile time error.

To update your based image layer you can run the following command. It seems to be replacing your OS/other dependencies layer (replacing a layer) but don't forget that there's additional testing work being carried out to ensure the based image (or builder) is working well before this can happpend.

pack rebase my-app:my-tag






Comments

Post a Comment

Popular posts from this blog

The specified initialization vector (IV) does not match the block size for this algorithm

Image
If you're getting  exception when trying to assigned key to a symmetric key and getting error message below :- The specified initialization vector (IV) does not match the block size for this algorithm And your code probably look like something below :- Then you need to go into debug mode and start looking into the supported size for IV as shown in diagram below :- As you can see, IV is 16 bytes, so you need to provide 16 bytes. The same goes for Key field too, if you're adding anything to it. As long as you provide a valid key size, then we're good and you're code will be ready.
Read more