feat: generate key pair using ssh2 for right public key format

.gitignore

@@ -1,3 +1,5 @@
+config 
+
 # Logs
 logs
 *.log

quests/Dockerfile

@@ -26,7 +26,7 @@ ENV USERNAME=commander
 
 RUN adduser --disabled-password --gecos '' --shell /bin/zsh ${USERNAME}
 COPY ./quests/sshd_config /etc/ssh/sshd_config
-COPY ./ssh_pubkey /home/${USERNAME}/.ssh/authorized_keys
+COPY ./config/ssh_key.pub /home/${USERNAME}/.ssh/authorized_keys
 RUN chmod 600 /home/${USERNAME}/.ssh/authorized_keys \
   && chmod 700 /home/${USERNAME}/.ssh \
   && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}/.ssh

server/package.json

@@ -62,6 +62,7 @@
     "@types/passport-local": "^1.0.38",
     "@types/passport-oauth2": "^1.4.15",
     "@types/source-map-support": "^0",
+    "@types/ssh2": "^1.15.1",
     "@types/swagger-ui-express": "^4.1.6",
     "@types/validator": "^13.11.9",
     "concurrently": "^8.2.2",

server/src/containers/docker.ts

@@ -1,4 +1,3 @@
-import fs from 'fs'
 import { Duplex } from 'stream'
 import { Client } from 'ssh2'
 import Docker from 'dockerode'
@@ -67,6 +66,7 @@ export async function attachContainer(
     config.docker.network
   ].IPAddress
   const conn = new Client()
+  console.log(config.docker.keypair.privateKey)
 
   return new Promise((resolve, reject) => {
     conn
@@ -100,7 +100,7 @@ export async function attachContainer(
         host: containerIp,
         port: 22,
         username: 'commander',
-        privateKey: fs.readFileSync('/home/wancat/.ssh/id_ed25519'),
+        privateKey: config.docker.keypair.privateKey,
         debug: console.log,
       })
   })

server/src/utils/crypto.ts

@@ -1,5 +1,9 @@
 import fs from 'fs'
-import { generateKeyPairSync } from 'crypto'
+import ssh2 from 'ssh2'
+
+const {
+  utils: { generateKeyPairSync },
+} = ssh2
 
 type KeyPair = {
   privateKey: string
@@ -24,16 +28,7 @@ export function loadOrCreateKeyPair(privateKeyPath: string): KeyPair {
 }
 
 export function generateKeyPair(): KeyPair {
-  const { privateKey, publicKey } = generateKeyPairSync('rsa', {
-    modulusLength: 2048,
-    publicKeyEncoding: {
-      type: 'spki',
-      format: 'pem',
-    },
-    privateKeyEncoding: {
-      type: 'pkcs8',
-      format: 'pem',
-    },
-  })
+  const { private: privateKey, public: publicKey } =
+    generateKeyPairSync('ed25519')
   return { privateKey, publicKey }
 }

yarn.lock

@@ -2067,6 +2067,13 @@
   dependencies:
     "@types/node" "^18.11.18"
 
+"@types/ssh2@^1.15.1":
+  version "1.15.1"
+  resolved "https://registry.yarnpkg.com/@types/ssh2/-/ssh2-1.15.1.tgz#4db4b6864abca09eb299fe5354fa591add412223"
+  integrity sha512-ZIbEqKAsi5gj35y4P4vkJYly642wIbY6PqoN0xiyQGshKUGXR9WQjF/iF9mXBQ8uBKy3ezfsCkcoHKhd0BzuDA==
+  dependencies:
+    "@types/node" "^18.11.18"
+
 "@types/stack-utils@^2.0.0":
   version "2.0.3"
   resolved "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-2.0.3.tgz"