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reverseproxy: Add --internal-certs CLI flag #3589 (#4817)

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added flag --internal-certs
when set, for non-local domains the internal CA will be used for cert generation
This commit is contained in:
Alexander M 2022-05-29 23:33:01 +03:00 committed by GitHub
parent ef0aaca0d6
commit a9267791c4
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 4 deletions
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22
modules/caddyhttp/reverseproxy/command.go
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@ -27,6 +27,7 @@ import (
caddycmd "github.com/caddyserver/caddy/v2/cmd"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
"github.com/caddyserver/caddy/v2/modules/caddyhttp/headers"
"github.com/caddyserver/caddy/v2/modules/caddytls"
)
func init() {
@ -59,6 +60,7 @@ default, all incoming headers are passed through unmodified.)
fs.String("to", "", "Upstream address to which traffic should be sent")
fs.Bool("change-host-header", false, "Set upstream Host header to address of upstream")
fs.Bool("insecure", false, "Disable TLS verification (WARNING: DISABLES SECURITY BY NOT VERIFYING SSL CERTIFICATES!)")
fs.Bool("internal-certs", false, "Use internal CA for issuing certs")
return fs
}(),
})
@ -71,6 +73,7 @@ func cmdReverseProxy(fs caddycmd.Flags) (int, error) {
to := fs.String("to")
changeHost := fs.Bool("change-host-header")
insecure := fs.Bool("insecure")
internalCerts := fs.Bool("internal-certs")
httpPort := strconv.Itoa(caddyhttp.DefaultHTTPPort)
httpsPort := strconv.Itoa(caddyhttp.DefaultHTTPSPort)
@ -154,11 +157,24 @@ func cmdReverseProxy(fs caddycmd.Flags) (int, error) {
Servers: map[string]*caddyhttp.Server{"proxy": server},
}
appsRaw := caddy.ModuleMap{
"http": caddyconfig.JSON(httpApp, nil),
}
if internalCerts && fromAddr.Host != "" {
tlsApp := caddytls.TLS{
Automation: &caddytls.AutomationConfig{
Policies: []*caddytls.AutomationPolicy{{
Subjects: []string{fromAddr.Host},
IssuersRaw: []json.RawMessage{json.RawMessage(`{"module":"internal"}`)},
}},
},
}
appsRaw["tls"] = caddyconfig.JSON(tlsApp, nil)
}
cfg := &caddy.Config{
Admin: &caddy.AdminConfig{Disabled: true},
AppsRaw: caddy.ModuleMap{
"http": caddyconfig.JSON(httpApp, nil),
},
AppsRaw: appsRaw,
}
err = caddy.Run(cfg)