# Configurações e Variáveis de Ambiente

Em muitos casos a sua aplicação pode precisar de configurações externas, como chaves secretas, credenciais de banco de dados, credenciais para serviços de email, etc.

A maioria dessas configurações é variável (podem mudar), como URLs de bancos de dados. E muitas delas podem conter dados sensíveis, como tokens secretos.

Por isso é comum prover essas configurações como variáveis de ambiente que são utilizidas pela aplicação.

pkg syscall (freebsd-386-cgo), type Cmsghdr struct, Type int32
pkg syscall (freebsd-386-cgo), type Credential struct
pkg syscall (freebsd-386-cgo), type Credential struct, Gid uint32
pkg syscall (freebsd-386-cgo), type Credential struct, Groups []uint32
pkg syscall (freebsd-386-cgo), type Credential struct, Uid uint32
pkg syscall (freebsd-386-cgo), type Dirent struct

	github.com/cyphar/filepath-securejoin v0.3.1 // indirect
	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
	github.com/docker/distribution v2.8.3+incompatible // indirect
	github.com/docker/docker-credential-helpers v0.8.2 // indirect
	github.com/emicklei/go-restful/v3 v3.12.0 // indirect
	github.com/envoyproxy/protoc-gen-validate v1.1.0 // indirect
	github.com/exponent-io/jsonpath v0.0.0-20210407135951-1de76d718b3f // indirect

left: -10px;\n  padding: 5px;\n  position: absolute;\n  top: -25px;\n  z-index: 10;\n}\n\n.lockscreen-image > img {\n  border-radius: 50%;\n  height: 70px;\n  width: 70px;\n}\n\n.lockscreen-credentials {\n  margin-left: 70px;\n}\n\n.lockscreen-credentials .form-control {\n  border: 0;\n}\n\n.lockscreen-credentials .btn {\n  background-color: #fff;\n  border: 0;\n  padding: 0 10px;\n}\n\n.lockscreen-footer {\n  margin-top: 10px;\n}\n\n.dark-mode .lockscreen-item {\n  background-color: #343a40;\n}\n\n.dark-mode...

## Veja em ação

Abra o docs interativo: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

### Autenticação

Clique no botão "Authorize".

Use as credenciais:

User: `johndoe`

Password: `secret`

<img src="/img/tutorial/security/image04.png">

Após autenticar no sistema, você verá assim:

<img src="/img/tutorial/security/image05.png">

:-25px;z-index:10}.lockscreen-image>img{border-radius:50%;height:70px;width:70px}.lockscreen-credentials{margin-left:70px}.lockscreen-credentials .form-control{border:0}.lockscreen-credentials .btn{background-color:#fff;border:0;padding:0 10px}.lockscreen-footer{margin-top:10px}.dark-mode .lockscreen-item{background-color:#343a40}.dark-mode .lockscreen-logo a{color:#fff}.dark-mode .lockscreen-credentials .btn{background-color:#343a40}.dark-mode .lockscreen-image{background-color:#6c757d}.login-l...

A security issue was discovered in kube-apiserver that could allow an attacker controlled aggregated API server to redirect client traffic to any URL.  This could lead to the client performing unexpected actions as well as leaking the client's credentials to third parties. 

There is no mitigation from this issue.  Cluster admins should take care to secure aggregated API servers and should not grant access to mutate `APIService`s to untrusted parties.

pkg syscall (darwin-386), type Cmsghdr struct, Type int32
pkg syscall (darwin-386), type Credential struct
pkg syscall (darwin-386), type Credential struct, Gid uint32
pkg syscall (darwin-386), type Credential struct, Groups []uint32
pkg syscall (darwin-386), type Credential struct, Uid uint32
pkg syscall (darwin-386), type Dirent struct
pkg syscall (darwin-386), type Dirent struct, Ino uint64

github.com/docker/distribution v2.8.3+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
github.com/docker/docker-credential-helpers v0.8.2 h1:bX3YxiGzFP5sOXWc3bTPEXdEaZSeVMrFgOr3T+zrFAo=
github.com/docker/docker-credential-helpers v0.8.2/go.mod h1:P3ci7E3lwkZg6XiHdRKft1KckHiO9a2rNtyFbZ/ry9M=
github.com/emicklei/go-restful/v3 v3.12.0 h1:y2DdzBAURM29NFF94q6RaY4vjIH1rtwDapwQtU84iWk=

pkg syscall (netbsd-arm64-cgo), type Credential struct
pkg syscall (netbsd-arm64-cgo), type Credential struct, Gid uint32
pkg syscall (netbsd-arm64-cgo), type Credential struct, Groups []uint32
pkg syscall (netbsd-arm64-cgo), type Credential struct, NoSetGroups bool
pkg syscall (netbsd-arm64-cgo), type Credential struct, Uid uint32
pkg syscall (netbsd-arm64-cgo), type Dirent struct