config: add yaml flag #3069
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config: add yaml flag #3069
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MustafaSaber
reviewed
May 7, 2024
YAML flag parses (preferably flow-style) YAML value from the command line
or unmarshals object yaml value from the yaml config file.
Example value:
```
bin/skipper -foo-flag='{foo: hello, bar: [world, "1"], baz: 2, qux: {baz: 3}}'
```
and equivalent branch in config yaml:
```yaml
foo-flag:
foo: hello
bar:
- world
- "1"
baz: 2
qux:
baz: 3
```
This will be useful for #2104
It is also a better alternative to manual parsing of micro-syntax like
e.g. implemented in #2888
Signed-off-by: Alexander Yastrebov <[email protected]>
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szuecs
reviewed
May 7, 2024
| ) | ||
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| type yamlFlag[T any] struct { | ||
| Ptr **T |
There was a problem hiding this comment.
The usage looks like
type Config struct {
OpenTelemetry *otel.Options `yaml:"open-telemetry"`
...
}
...
flag.Var(newYamlFlag(&cfg.OpenTelemetry), "open-telemetry", "OpenTelemetry configuration in YAML format, use flow-style for convenience")
...
if o.OpenTelemetry != nil {
...
}The value is allocated when flag is set and stays nil when it is not, i.e. this allows to tell if flag was provided.
|
👍 |
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This was referenced May 13, 2024
JanardhanSharma
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to JanardhanSharma/skipper
that referenced
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Jul 19, 2024
YAML flag parses (preferably flow-style) YAML value from the command line
or unmarshals object yaml value from the yaml config file.
Example value:
```
bin/skipper -foo-flag='{foo: hello, bar: [world, "1"], baz: 2, qux: {baz: 3}}'
```
and equivalent branch in config yaml:
```yaml
foo-flag:
foo: hello
bar:
- world
- "1"
baz: 2
qux:
baz: 3
```
This will be useful for zalando#2104
It is also a better alternative to manual parsing of micro-syntax like
e.g. implemented in zalando#2888
Signed-off-by: Alexander Yastrebov <[email protected]>
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YAML flag parses (preferably flow-style) YAML value from the command line or unmarshals object yaml value from the yaml config file.
Example value:
and equivalent branch in config yaml:
This will be useful for #2104
It is also a better alternative to manual parsing of micro-syntax like e.g. implemented in #2888