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Add middleware for rewriting host headers

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This commit is contained in:
Owen
2026-06-14 12:04:02 -07:00
parent 4435a669a6
commit ea1badf4e0
3 changed files with 56 additions and 6 deletions
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58
server/private/lib/traefik/getTraefikConfig.ts
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@@ -634,6 +634,7 @@ export async function getTraefikConfig(
const maintenanceServiceName = `${key}-maintenance-service`;
const maintenanceRouterName = `${key}-maintenance-router`;
const rewriteMiddlewareName = `${key}-maintenance-rewrite`;
const maintenanceHeadersMiddlewareName = `${key}-maintenance-headers`;
const entrypointHttp =
config.getRawConfig().traefik.http_entrypoint;
@@ -669,12 +670,26 @@ export async function getTraefikConfig(
}
};
config_output.http.middlewares[
maintenanceHeadersMiddlewareName
] = {
headers: {
customRequestHeaders: {
Host: "app.pangolin.net", // if we are sending to the cloud the host needs to be this but we will pull the p-host to find the resource
"p-host": fullDomain
}
}
};
config_output.http.routers[maintenanceRouterName] = {
entryPoints: [
resource.ssl ? entrypointHttps : entrypointHttp
],
service: maintenanceServiceName,
middlewares: [rewriteMiddlewareName],
middlewares: [
rewriteMiddlewareName,
maintenanceHeadersMiddlewareName
],
rule: rule,
priority: 2000,
...(resource.ssl ? { tls } : {})
@@ -687,6 +702,7 @@ export async function getTraefikConfig(
resource.ssl ? entrypointHttps : entrypointHttp
],
service: maintenanceServiceName,
middlewares: [maintenanceHeadersMiddlewareName],
rule: `${rule} && (PathPrefix(\`/_next\`) || PathRegexp(\`^/__nextjs*\`) || Path(\`/favicon.ico\`)) `,
priority: 2001,
...(resource.ssl ? { tls } : {})
@@ -1119,6 +1135,7 @@ export async function getTraefikConfig(
const bgMaintenanceServiceName = `bg-r${bgResource.resourceId}-maintenance-service`;
const bgMaintenanceRouterName = `bg-r${bgResource.resourceId}-maintenance-router`;
const bgRewriteMiddlewareName = `bg-r${bgResource.resourceId}-maintenance-rewrite`;
const bgMaintenanceHeadersMiddlewareName = `bg-r${bgResource.resourceId}-maintenance-headers`;
const entrypointHttp =
config.getRawConfig().traefik.http_entrypoint;
@@ -1150,12 +1167,26 @@ export async function getTraefikConfig(
}
};
config_output.http.middlewares![
bgMaintenanceHeadersMiddlewareName
] = {
headers: {
customRequestHeaders: {
Host: "app.pangolin.net", // if we are sending to the cloud the host needs to be this but we will pull the p-host to find the resource
"p-host": fullDomain
}
}
};
config_output.http.routers![bgMaintenanceRouterName] = {
entryPoints: [
bgResource.ssl ? entrypointHttps : entrypointHttp
],
service: bgMaintenanceServiceName,
middlewares: [bgRewriteMiddlewareName],
middlewares: [
bgRewriteMiddlewareName,
bgMaintenanceHeadersMiddlewareName
],
rule: hostRule,
priority: 2000,
...(bgResource.ssl ? { tls } : {})
@@ -1168,6 +1199,7 @@ export async function getTraefikConfig(
bgResource.ssl ? entrypointHttps : entrypointHttp
],
service: bgMaintenanceServiceName,
middlewares: [bgMaintenanceHeadersMiddlewareName],
rule: `${hostRule} && (PathPrefix(\`/_next\`) || PathRegexp(\`^/__nextjs*\`) || Path(\`/favicon.ico\`))`,
priority: 2001,
...(bgResource.ssl ? { tls } : {})
@@ -1227,6 +1259,7 @@ export async function getTraefikConfig(
// how the maintenance page rewrites everything to /maintenance-screen.
const primaryType = typeMap.keys().next().value as string;
const uiRewriteMiddlewareName = `bg-r${bgResource.resourceId}-ui-rewrite`;
const uiHeadersMiddlewareName = `bg-r${bgResource.resourceId}-ui-headers`;
const entrypoint = bgResource.ssl
? config.getRawConfig().traefik.https_entrypoint
: config.getRawConfig().traefik.http_entrypoint;
@@ -1242,6 +1275,15 @@ export async function getTraefikConfig(
}
};
config_output.http.middlewares![uiHeadersMiddlewareName] = {
headers: {
customRequestHeaders: {
Host: "app.pangolin.net", // if we are sending to the cloud the host needs to be this but we will pull the p-host to find the resource
"p-host": fullDomain
}
}
};
config_output.http.services![bgUiServiceName] = {
loadBalancer: {
servers: [
@@ -1257,7 +1299,11 @@ export async function getTraefikConfig(
`bg-r${bgResource.resourceId}-assets-router`
] = {
entryPoints: [entrypoint],
middlewares: routerMiddlewares,
middlewares: [
...routerMiddlewares,
uiRewriteMiddlewareName,
uiHeadersMiddlewareName
],
service: bgUiServiceName,
rule: `${hostRule} && (PathPrefix(\`/_next\`) || PathRegexp(\`^/__nextjs*\`) || Path(\`/favicon.ico\`))`,
priority: 101,
@@ -1269,7 +1315,11 @@ export async function getTraefikConfig(
`bg-r${bgResource.resourceId}-ui-router`
] = {
entryPoints: [entrypoint],
middlewares: [...routerMiddlewares, uiRewriteMiddlewareName],
middlewares: [
...routerMiddlewares,
uiRewriteMiddlewareName,
uiHeadersMiddlewareName
],
service: bgUiServiceName,
rule: hostRule,
priority: 100,