eca59b2e97
With this patch, /var/cache/apt/archives directory content is preserved. The directory is actually a bind mount of the ~/.cache/image-create/apt/$DISTRO_NAME directory, much like what we do for ccache. You can use DIB_APT_LOCAL_CACHE=0 to disable this behavior. This trivial change improve performance A LOT (>30%), even if a local HTTP proxy because: - there is no need to copy again and again the same files - we avoid network latency The patch has been tested with Debian and Ubuntu with every elements from the tripleo-image-elements repository, the final size of the cache directory is about 700MB per distribution subdirectory. Change-Id: I4fab499493f734c7c546d4d23b1a98f0e7523a39
20 lines
966 B
Markdown
20 lines
966 B
Markdown
Provide dpkg specific image building glue.
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The ubuntu element needs customisations at the start and end of the image build
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process that do not apply to RPM distributions, such as using the host machine
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HTTP proxy when installing packages. These customisations live here, where they
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can be used by any dpkg based element.
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The dpkg specific version of install-packages is also kept here.
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### Environment Variables ###
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* DIB\_ADD\_APT\_KEYS: If an extra or updated apt key is needed then define
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DIB\_ADD\_APT\_KEYS with the path to a folder. Any key files inside will be
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added to the key ring before any apt-get commands take place.
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* DIB\_APT\_LOCAL\_CACHE: You can use this variable to disable the internal cache
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of the /var/cache/apt/archives directory by setting it to 0. The default is to bind
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mount the ~/.cache/image-create/apt/$DISTRO_NAME directory in
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/var/cache/apt/archives, this to cache the .deb files downloaded during the image
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creation.
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