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use client consts for environment variable names

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It's slightly more verbose, but helps finding the purpose of each
of the environment variables. In tests, I kept the fixed strings.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2022-03-25 00:15:14 +01:00
parent 68cad50f61
commit 1db2da57c8
5 changed files with 21 additions and 16 deletions
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6
cli/command/cli.go
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@ -411,7 +411,7 @@ func getServerHost(hosts []string, tlsOptions *tlsconfig.Options) (string, error
var host string
switch len(hosts) {
case 0:
host = os.Getenv("DOCKER_HOST")
host = os.Getenv(client.EnvOverrideHost)
case 1:
host = hosts[0]
default:
@ -429,7 +429,7 @@ func UserAgent() string {
// resolveContextName resolves the current context name with the following rules:
// - setting both --context and --host flags is ambiguous
// - if --context is set, use this value
// - if --host flag or DOCKER_HOST is set, fallbacks to use the same logic as before context-store was added
// - if --host flag or DOCKER_HOST (client.EnvOverrideHost) is set, fallbacks to use the same logic as before context-store was added
// for backward compatibility with existing scripts
// - if DOCKER_CONTEXT is set, use this value
// - if Config file has a globally set "CurrentContext", use this value
@ -444,7 +444,7 @@ func resolveContextName(opts *cliflags.CommonOptions, config *configfile.ConfigF
if len(opts.Hosts) > 0 {
return DefaultContextName, nil
}
if _, present := os.LookupEnv("DOCKER_HOST"); present {
if _, present := os.LookupEnv(client.EnvOverrideHost); present {
return DefaultContextName, nil
}
if ctxName, ok := os.LookupEnv("DOCKER_CONTEXT"); ok {