gomplate

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gomplate是一个模板渲染器，它支持越来越多的数据源列表，例如：JSON（包括Ejson-加密JSON ），YAML，AWS EC2 Metadata，Hashicorp Consul和Hashicorp Vault Pault Secrets。

在Gophers Slack和Github讨论中与gomplate频道中的开发人员和社区聊天！

以下是一些gomplate的示例：

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://ipi*nfo*.*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://*wt*tr.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\”>

$ # 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://ipi*nfo*.*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