_Read the docs at [docs.gomplate.ca][docs-url], chat with developers and community in the [#gomplate channel][] on [Gophers Slack][]_ [![Build Status][circleci-image]][circleci-url] [![Build][gh-actions-image]][gh-actions-url] [![Go Report Card][reportcard-image]][reportcard-url] [![Codebeat Status][codebeat-image]][codebeat-url] [![Coverage][gocover-image]][gocover-url] [![Total Downloads][gh-downloads-image]][gh-downloads-url] [![CII Best Practices][cii-bp-image]][cii-bp-url] [![hairyhenderson/gomplate on DockerHub][dockerhub-image]][dockerhub-url] [![DockerHub Stars][dockerhub-stars-image]][dockerhub-url] [![DockerHub Pulls][dockerhub-pulls-image]][dockerhub-url] [![DockerHub Image Layers][microbadger-layers-image]][microbadger-url] [![DockerHub Latest Version ][microbadger-version-image]][microbadger-url] [![DockerHub Latest Commit][microbadger-commit-image]][microbadger-url] [![Install Docs][install-docs-image]][install-docs-url] [![Slack][slack-image]][slack-url] [![Discussions][discussions-image]][discussions-url] `gomplate` is a template renderer which supports a growing list of datasources, such as: JSON (_including EJSON - encrypted JSON_), YAML, AWS EC2 metadata, [BoltDB](https://github.com/boltdb/bolt), [Hashicorp Consul](https://www.consul.io/) and [Hashicorp Vault](https://www.vaultproject.io/) secrets. Come chat with developers and community in the [#gomplate channel][] on [Gophers Slack][] and on [GitHub Discussions][discussions-url]! Here are some hands-on examples of how `gomplate` works: ```console $ # at its most basic, gomplate can be used with environment variables... $ echo 'Hello, {{ .Env.USER }}' | gomplate Hello, hairyhenderson $ # but that's kind of boring. gomplate has tons of functions to do useful stuff, too $ gomplate -i 'the answer is: {{ mul 6 7 }}' the answer is: 42 $ # and, since gomplate uses Go's templating syntax, you can do fun things like: $ gomplate -i '{{ range seq 5 1 }}{{ . }} {{ if eq . 1 }}{{ "blastoff" | toUpper }}{{ end }}{{ end }}' 5 4 3 2 1 BLASTOFF $ # the real fun comes when you use datasources! $ cat ./config.yaml foo: bar: baz: qux $ gomplate -d config=./config.yaml -i 'the value we want is: {{ (datasource "config").foo.bar.baz }}' the value we want is: qux $ # datasources are defined by URLs, and gomplate is not limited to just file-based datasources: $ gomplate -d ip=https://ipinfo.io -i 'country code: {{ (ds "ip").country }}' country code: CA $ # standard input can be used as a datasource too: $ echo '{"cities":["London", "Johannesburg", "Windhoek"]}' | gomplate -d city=stdin:///in.json -i '{{ range (ds "city").cities }}{{.}}, {{end}}' London, Johannesburg, Windhoek, $ # and here's something a little more complicated: $ export CITIES='city: [London, Johannesburg, Windhoek]' $ cat in.tmpl {{ range $i, $city := (ds "cities").city -}} {{ add 1 $i }}: {{ include "weather" (print $city "?0") }} {{ end }} $ gomplate -d 'cities=env:///CITIES?type=application/yaml' -d 'weather=https://wttr.in/?0' -H 'weather=User-Agent: curl' -f in.tmpl 1: Weather report: London \ / Partly cloudy _ /"".-. 4-7 °C \_( ). ↑ 20 km/h /(___(__) 10 km 0.0 mm 2: Weather report: Johannesburg \ / Partly cloudy _ /"".-. 15 °C \_( ). ↘ 0 km/h /(___(__) 10 km 2.2 mm 3: Weather report: Windhoek \ / Partly cloudy _ /"".-. 20 °C \_( ). ↑ 6 km/h /(___(__) 20 km 0.0 mm ``` Read the documentation at [docs.gomplate.ca][docs-url], and join the discussion in [GitHub Discussions][discussions-url]! _Please report any bugs found in the [issue tracker](https://github.com/hairyhenderson/gomplate/issues/)._ ## License [The MIT License](http://opensource.org/licenses/MIT) Copyright (c) 2016-2021 Dave Henderson [circleci-image]: https://img.shields.io/circleci/project/github/hairyhenderson/gomplate/master.svg?logo=circleci [circleci-url]: https://circleci.com/gh/hairyhenderson/gomplate/tree/master [gh-actions-image]: https://github.com/hairyhenderson/gomplate/workflows/Build/badge.svg?branch=master [gh-actions-url]: https://github.com/hairyhenderson/gomplate/actions?workflow=Build&branch=master [reportcard-image]: https://goreportcard.com/badge/github.com/hairyhenderson/gomplate [reportcard-url]: https://goreportcard.com/report/github.com/hairyhenderson/gomplate [codebeat-image]: https://codebeat.co/badges/39ed2148-4b86-4d1e-8526-25f60e159ba1 [codebeat-url]: https://codebeat.co/projects/github-com-hairyhenderson-gomplate [gocover-image]: https://gocover.io/_badge/github.com/hairyhenderson/gomplate [gocover-url]: https://gocover.io/github.com/hairyhenderson/gomplate [gh-downloads-image]: https://img.shields.io/github/downloads/hairyhenderson/gomplate/total.svg [gh-downloads-url]: https://github.com/hairyhenderson/gomplate/releases [cii-bp-image]: https://bestpractices.coreinfrastructure.org/projects/337/badge [cii-bp-url]: https://bestpractices.coreinfrastructure.org/projects/337 [dockerhub-image]: https://img.shields.io/badge/docker-ready-blue.svg [dockerhub-url]: https://hub.docker.com/r/hairyhenderson/gomplate [dockerhub-stars-image]: https://img.shields.io/docker/stars/hairyhenderson/gomplate.svg [dockerhub-pulls-image]: https://img.shields.io/docker/pulls/hairyhenderson/gomplate.svg [microbadger-version-image]: https://images.microbadger.com/badges/version/hairyhenderson/gomplate.svg [microbadger-layers-image]: https://images.microbadger.com/badges/image/hairyhenderson/gomplate.svg [microbadger-commit-image]: https://images.microbadger.com/badges/commit/hairyhenderson/gomplate.svg [microbadger-url]: https://microbadger.com/image/hairyhenderson/gomplate [docs-url]: https://docs.gomplate.ca [install-docs-image]: https://img.shields.io/badge/install-docs-blue.svg [install-docs-url]: https://docs.gomplate.ca/installing [Gophers Slack]: https://invite.slack.golangbridge.org [#gomplate channel]: https://gophers.slack.com/messages/CGTR16RM2/ [slack-image]: https://img.shields.io/badge/slack-gophers/%23gomplate-00ADD8.svg?logo=slack [slack-url]: https://gophers.slack.com/messages/CGTR16RM2/ [discussions-image]: https://img.shields.io/badge/discussions-gomplate-blue.svg?logo=github [discussions-url]: https://github.com/hairyhenderson/gomplate/discussions [](https://github.com/igrigorik/ga-beacon)