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52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
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[](https://goreportcard.com/report/github.com/Luzifer/korvike)
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# Luzifer / korvike
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`korvike` is the finnish translation to the word "replacer" and that is what it does: It takes a Go template and executes it.
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## Available functions
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- `{{ .<variable name> }}`
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Take key-value pairs from the CLI and replace them inside the template
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```bash
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# echo "{{ .foo }}" | korvike -v foo=bar
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bar
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```
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- `{{ b64encode <string> }}`
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Encodes the string with base64 [StdEncoding](https://golang.org/pkg/encoding/base64/#pkg-variables)
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```console
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# echo '{{ b64encode "Hello World" }}' | korvike
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SGVsbG8gV29ybGQ=
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```
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- `{{ env <variable name> [default value] }}`
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Read environment variables and replace them inside the template
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```bash
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# export FOO=bar
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# echo '{{env "FOO"}}' | korvike
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bar
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```
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- `{{ file <file name> [default value] }}`
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Read a file and place it inside the template
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```bash
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# echo "Hello World" > hello
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# echo '{{file "hello"}}' | korvike
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Hello World
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```
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- `{{ now <format string> }}`
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Format the current date into the template (uses [Go time format](https://golang.org/pkg/time/#Time.Format))
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```bash
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# echo '{{now "2006-01-02 15:04:05"}}' | korvike
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2017-04-17 16:27:34
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```
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- `{{ vault <path> <key> [default value] }}`
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Read a key from Vault using `VAULT_ADDR` and `VAULT_TOKEN` environment variables (or `~/.vault-token` file) for authentication.
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```bash
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# vault write secret/test foo=bar
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# echo '{{vault "secret/test" "foo"}}' | korvike
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bar
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```
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----
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