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dockertools.buildLayeredImage: default layer count up to 100

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This commit is contained in:
Graham Christensen 2019-08-12 19:59:40 -04:00
parent 2e6a16f2bd
commit 8adaae2df2
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2 changed files with 8 additions and 4 deletions
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5
doc/functions/dockertools.xml
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@ -312,7 +312,10 @@ hello latest de2bf4786de6 About a minute ago 25.2MB
Maximum number of layers to create.
</para>
<para>
<emphasis>Default:</emphasis> <literal>24</literal>
<emphasis>Default:</emphasis> <literal>100</literal>
</para>
<para>
<emphasis>Maximum:</emphasis> <literal>125</literal>
</para>
</listitem>
</varlistentry>

7
pkgs/build-support/docker/default.nix
View File

@ -291,9 +291,10 @@ rec {
# Files to add to the layer.
closure,
configJson,
# Docker has a 42-layer maximum, we pick 24 to ensure there is plenty
# of room for extension
maxLayers ? 24
# Docker has a 125-layer maximum, we pick 100 to ensure there is
# plenty of room for extension.
# https://github.com/moby/moby/blob/b3e9f7b13b0f0c414fa6253e1f17a86b2cff68b5/layer/layer_store.go#L23-L26
maxLayers ? 100
}:
let
storePathToLayer = substituteAll