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Remove tarball.WithCompressedCaching flag to resolve OOM Killed error (#1722)

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* Remove tarball.WithCompressedCaching flag to resolve OOM Killed error

Large images cannot be build as the kaniko container will be killed due to an OOM error. Removing the tarball compression drastically reduces the memory required to push large image layers. Fixes #1680

This change may increase the build time for smaller images. Therefore a command line option to trigger the compression or a more intelligent behaviour may be useful.

* Add new command line flag to toggle compressed caching

* Add unittest for build with --compressed-caching command line flag set to false
This commit is contained in:
Janosch Maier
2021-10-19 00:14:06 -07:00
committed by GitHub
parent 822f72922a
commit 46e01340c2
6 changed files with 57 additions and 2 deletions
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cmd/executor/cmd/root.go
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@@ -202,6 +202,7 @@ func addKanikoOptionsFlags() {
RootCmd.PersistentFlags().StringVarP(&opts.ImageNameTagDigestFile, "image-name-tag-with-digest-file", "", "", "Specify a file to save the image name w/ image tag w/ digest of the built image to.")
RootCmd.PersistentFlags().StringVarP(&opts.OCILayoutPath, "oci-layout-path", "", "", "Path to save the OCI image layout of the built image.")
RootCmd.PersistentFlags().BoolVarP(&opts.Cache, "cache", "", false, "Use cache when building image")
RootCmd.PersistentFlags().BoolVarP(&opts.CompressedCaching, "compressed-caching", "", true, "Compress the cached layers. Decreases build time, but increases memory usage.")
RootCmd.PersistentFlags().BoolVarP(&opts.Cleanup, "cleanup", "", false, "Clean the filesystem at the end")
RootCmd.PersistentFlags().DurationVarP(&opts.CacheTTL, "cache-ttl", "", time.Hour*336, "Cache timeout in hours. Defaults to two weeks.")
RootCmd.PersistentFlags().VarP(&opts.InsecureRegistries, "insecure-registry", "", "Insecure registry using plain HTTP to push and pull. Set it repeatedly for multiple registries.")