New inmplementations, big commit :

1. Nested upstreams with params
2. SSL upstream support
3. Upstreams move to yaml format
4. Command line start arguments

Cargo.lock

@@ -186,6 +186,7 @@ dependencies = [
  "async-trait",
  "axum",
  "bytes",
+ "clap 4.5.32",
  "dashmap",
  "env_logger",
  "futures",
@@ -201,6 +202,7 @@ dependencies = [
  "reqwest",
  "serde",
  "serde_json",
+ "serde_yaml",
  "tokio",
 ]
 
@@ -432,8 +434,8 @@ checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123"
 dependencies = [
  "atty",
  "bitflags 1.3.2",
- "clap_derive",
- "clap_lex",
+ "clap_derive 3.2.25",
+ "clap_lex 0.2.4",
  "indexmap 1.9.3",
  "once_cell",
  "strsim 0.10.0",
@@ -441,6 +443,28 @@ dependencies = [
  "textwrap 0.16.1",
 ]
 
+[[package]]
+name = "clap"
+version = "4.5.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6088f3ae8c3608d19260cd7445411865a485688711b78b5be70d78cd96136f83"
+dependencies = [
+ "clap_builder",
+ "clap_derive 4.5.32",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22a7ef7f676155edfb82daa97f99441f3ebf4a58d5e32f295a56259f1b6facc8"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex 0.7.4",
+ "strsim 0.11.1",
+]
+
 [[package]]
 name = "clap_derive"
 version = "3.2.25"
@@ -454,6 +478,18 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "clap_derive"
+version = "4.5.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09176aae279615badda0765c0c0b3f6ed53f4709118af73cf4655d85d1530cd7"
+dependencies = [
+ "heck 0.5.0",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.96",
+]
+
 [[package]]
 name = "clap_lex"
 version = "0.2.4"
@@ -463,6 +499,12 @@ dependencies = [
  "os_str_bytes",
 ]
 
+[[package]]
+name = "clap_lex"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
+
 [[package]]
 name = "cmake"
 version = "0.1.52"
@@ -1588,6 +1630,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-src"
+version = "300.4.2+3.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "168ce4e058f975fe43e89d9ccf78ca668601887ae736090aacc23ae353c298e2"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.106"
@@ -1596,6 +1647,7 @@ checksum = "8bb61ea9811cc39e3c2069f40b8b8e2e70d8569b361f879786cc7ed48b777cdd"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
@@ -1679,6 +1731,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "79c9fc7098dc3e7d09d2d1647921005be9301cf68536826195dc5369e05124bd"
 dependencies = [
+ "pingora-cache",
  "pingora-core",
  "pingora-http",
  "pingora-load-balancing",
@@ -1750,6 +1803,7 @@ dependencies = [
  "percent-encoding",
  "pingora-error",
  "pingora-http",
+ "pingora-openssl",
  "pingora-pool",
  "pingora-runtime",
  "pingora-timeout",
@@ -1846,6 +1900,20 @@ dependencies = [
  "rand",
 ]
 
+[[package]]
+name = "pingora-openssl"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f18158b901a02289f2a2a954a531c96e4d0703c94f7c9291981c9e53fddc6c1"
+dependencies = [
+ "foreign-types",
+ "libc",
+ "openssl",
+ "openssl-src",
+ "openssl-sys",
+ "tokio-openssl",
+]
+
 [[package]]
 name = "pingora-pool"
 version = "0.4.0"
@@ -2448,6 +2516,12 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "structopt"
 version = "0.3.26"
@@ -2690,6 +2764,17 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-openssl"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59df6849caa43bb7567f9a36f863c447d95a11d5903c9cc334ba32576a27eadd"
+dependencies = [
+ "openssl",
+ "openssl-sys",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.26.1"