diff --git a/ThirdPartyLicenses.txt b/ThirdPartyLicenses.txt index 99bc267e11f9..376506337e79 100644 --- a/ThirdPartyLicenses.txt +++ b/ThirdPartyLicenses.txt @@ -976,3 +976,197 @@ Microsoft is offering you a license to use the following components, to the exte * Public License instead of this License. But first, please read * . */ + +4. apt-clean, apt-gzip-indexes, apt-no-languages imported from docker v1.11.1 +/* + * Apache License + * Version 2.0, January 2004 + * https://www.apache.org/licenses/ + * + * TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + * + * 1. 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What this means for us is that +# the caches that APT keeps end up just wasting space in those layers, making +# our layers unnecessarily large (especially since we'll normally never use +# these caches again and will instead just "docker build" again and make a brand +# new image). + +# Ideally, these would just be invoking "apt-get clean", but in our testing, +# that ended up being cyclic and we got stuck on APT's lock, so we get this fun +# creation that's essentially just "apt-get clean". +DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; }; +APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; }; + +Dir::Cache::pkgcache ""; +Dir::Cache::srcpkgcache ""; + +# Note that we do realize this isn't the ideal way to do this, and are always +# open to better suggestions (https://github.com/docker/docker/issues). diff --git a/files/apt/apt.conf.d/apt-gzip-indexes b/files/apt/apt.conf.d/apt-gzip-indexes new file mode 100644 index 000000000000..6d29ac4474de --- /dev/null +++ b/files/apt/apt.conf.d/apt-gzip-indexes @@ -0,0 +1,11 @@ +# Since Docker users using "RUN apt-get update && apt-get install -y ..." in +# their Dockerfiles don't go delete the lists files afterwards, we want them to +# be as small as possible on-disk, so we explicitly request "gz" versions and +# tell Apt to keep them gzipped on-disk. + +# For comparison, an "apt-get update" layer without this on a pristine +# "debian:wheezy" base image was "29.88 MB", where with this it was only +# "8.273 MB". + +Acquire::GzipIndexes "true"; +Acquire::CompressionTypes::Order:: "gz"; diff --git a/files/apt/apt.conf.d/apt-no-languages b/files/apt/apt.conf.d/apt-no-languages new file mode 100644 index 000000000000..964d83d6c5b9 --- /dev/null +++ b/files/apt/apt.conf.d/apt-no-languages @@ -0,0 +1,5 @@ +# In Docker, we don't often need the "Translations" files, so we're just wasting +# time and space by downloading them, and this inhibits that. For users that do +# need them, it's a simple matter to delete this file and "apt-get update". :) + +Acquire::Languages "none";