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Fix crash observed in OPA initialization (#7990)

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Related to #7982, this PR refactors the code
such that we validate the OPA or JWKS in a
common place.

This is also a refactor which is already done
in the new config migration change. Attempt
to avoid any network I/O during Unmarshal of
JSON from disk, instead do it later when
updating the in-memory data structure.
This commit is contained in:
Harshavardhana
2019-07-29 15:58:25 -07:00
committed by kannappanr
parent 54eded2e6f
commit 8d47ef503c
3 changed files with 28 additions and 58 deletions
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42
cmd/config-current.go
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@@ -281,28 +281,27 @@ func (s *serverConfig) loadFromEnvs() {
}
if jwksURL, ok := os.LookupEnv("MINIO_IAM_JWKS_URL"); ok {
if u, err := xnet.ParseURL(jwksURL); err == nil {
s.OpenID.JWKS.URL = u
logger.FatalIf(s.OpenID.JWKS.PopulatePublicKey(), "Unable to populate public key from JWKS URL")
} else {
u, err := xnet.ParseURL(jwksURL)
if err != nil {
logger.FatalIf(err, "Unable to parse MINIO_IAM_JWKS_URL %s", jwksURL)
}
s.OpenID.JWKS.URL = u
}
if opaURL, ok := os.LookupEnv("MINIO_IAM_OPA_URL"); ok {
if u, err := xnet.ParseURL(opaURL); err == nil {
opaArgs := iampolicy.OpaArgs{
URL: u,
AuthToken: os.Getenv("MINIO_IAM_OPA_AUTHTOKEN"),
Transport: NewCustomHTTPTransport(),
CloseRespFn: xhttp.DrainBody,
}
s.Policy.OPA.URL = opaArgs.URL
s.Policy.OPA.AuthToken = opaArgs.AuthToken
logger.FatalIf(opaArgs.Validate(), "Unable to reach MINIO_IAM_OPA_URL %s", opaURL)
} else {
u, err := xnet.ParseURL(opaURL)
if err != nil {
logger.FatalIf(err, "Unable to parse MINIO_IAM_OPA_URL %s", opaURL)
}
opaArgs := iampolicy.OpaArgs{
URL: u,
AuthToken: os.Getenv("MINIO_IAM_OPA_AUTHTOKEN"),
Transport: NewCustomHTTPTransport(),
CloseRespFn: xhttp.DrainBody,
}
logger.FatalIf(opaArgs.Validate(), "Unable to reach MINIO_IAM_OPA_URL %s", opaURL)
s.Policy.OPA.URL = opaArgs.URL
s.Policy.OPA.AuthToken = opaArgs.AuthToken
}
}
@@ -547,7 +546,7 @@ func (s *serverConfig) loadToCachedConfigs() {
globalCacheMaxUse = cacheConf.MaxUse
}
if err := Environment.LookupKMSConfig(s.KMS); err != nil {
logger.FatalIf(err, "Unable to setup the KMS")
logger.FatalIf(err, "Unable to setup the KMS %s", s.KMS.Vault.Endpoint)
}
if !globalIsCompressionEnabled {
@@ -557,15 +556,22 @@ func (s *serverConfig) loadToCachedConfigs() {
globalIsCompressionEnabled = compressionConf.Enabled
}
if s.OpenID.JWKS.URL != nil && s.OpenID.JWKS.URL.String() != "" {
logger.FatalIf(s.OpenID.JWKS.PopulatePublicKey(),
"Unable to populate public key from JWKS URL %s", s.OpenID.JWKS.URL)
}
globalIAMValidators = getAuthValidators(s)
if s.Policy.OPA.URL != nil && s.Policy.OPA.URL.String() != "" {
globalPolicyOPA = iampolicy.NewOpa(iampolicy.OpaArgs{
opaArgs := iampolicy.OpaArgs{
URL: s.Policy.OPA.URL,
AuthToken: s.Policy.OPA.AuthToken,
Transport: NewCustomHTTPTransport(),
CloseRespFn: xhttp.DrainBody,
})
}
logger.FatalIf(opaArgs.Validate(), "Unable to reach OPA URL %s", s.Policy.OPA.URL)
globalPolicyOPA = iampolicy.NewOpa(opaArgs)
}
}