41 lines
800 B
Go
41 lines
800 B
Go
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package pluginutil
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import (
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"os"
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"github.com/hashicorp/go-version"
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)
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var (
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// PluginVaultVersionEnv is the ENV name used to pass the version of the
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// vault server to the plugin
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PluginVaultVersionEnv = "VAULT_VERSION"
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)
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// GRPCSupport defaults to returning true, unless VAULT_VERSION is missing or
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// it fails to meet the version constraint.
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func GRPCSupport() bool {
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verString := os.Getenv(PluginVaultVersionEnv)
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// If the env var is empty, we fall back to netrpc for backward compatibility.
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if verString == "" {
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return false
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}
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if verString != "unknown" {
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ver, err := version.NewVersion(verString)
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if err != nil {
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return true
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}
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constraint, err := version.NewConstraint(">= 0.9.2")
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if err != nil {
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return true
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}
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return constraint.Check(ver)
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}
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return true
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}
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