Add sprig template functions to label templates#783
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lucaslorentz merged 1 commit intomasterfrom Mar 12, 2026
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Add the sprig template function library, giving users access to
100+ utility functions (string manipulation, math, date, etc.)
in their Docker label templates.
This enables workarounds like trimPrefix for the leading slash in
container names from the Docker API, e.g.:
{{trimPrefix "/" (index .Names 0)}}
Closes #648
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
{{trimPrefix "/" (index .Names 0)}}Closes #648
Test plan
TestContainers_TemplateDatato usetrimPrefixwith a realistic/container-nameinput from the Docker API🤖 Generated with Claude Code