feat(striker-ui-api): add POST, DELETE /host/connection

striker-ui-api/src/lib/consts/SERVER_PATHS.ts

@@ -11,6 +11,7 @@ const EMPTY_SERVER_PATHS: ServerPath = {
     bin: {
       date: {},
       mkfifo: {},
+      psql: {},
       rm: {},
       sed: {},
     },
@@ -25,6 +26,7 @@ const EMPTY_SERVER_PATHS: ServerPath = {
       'anvil-update-system': {},
       'striker-initialize-host': {},
       'striker-manage-install-target': {},
+      'striker-manage-peers': {},
       'striker-parse-os-list': {},
     },
   },

striker-ui-api/src/lib/request_handlers/host/createHostConnection.ts

@@ -0,0 +1,190 @@
+import { RequestHandler } from 'express';
+
+import SERVER_PATHS from '../../consts/SERVER_PATHS';
+
+import {
+  getAnvilData,
+  getLocalHostUUID,
+  getPeerData,
+  job,
+  sub,
+} from '../../accessModule';
+import { sanitize } from '../../sanitize';
+import { rm, stderr, stdoutVar } from '../../shell';
+
+export const createHostConnection: RequestHandler<
+  unknown,
+  undefined,
+  CreateHostConnectionRequestBody
+> = (request, response) => {
+  const {
+    body: {
+      dbName = 'anvil',
+      ipAddress,
+      isPing = false,
+      password,
+      port = 5432,
+      sshPort = 22,
+      user = 'admin',
+    },
+  } = request;
+
+  const commonDBName = sanitize(dbName, 'string');
+  const commonIsPing = sanitize(isPing, 'boolean');
+  const commonPassword = sanitize(password, 'string');
+  const commonDBPort = sanitize(port, 'number');
+  const commonDBUser = sanitize(user, 'string');
+  const peerIPAddress = sanitize(ipAddress, 'string');
+  const peerSSHPort = sanitize(sshPort, 'number');
+
+  const commonPing = commonIsPing ? 1 : 0;
+
+  let localDBPort: number;
+  let localIPAddress: string;
+  let isPeerReachable = false;
+  let isPeerDBReachable = false;
+  let peerHostUUID: string;
+
+  try {
+    ({ hostUUID: peerHostUUID, isConnected: isPeerReachable } = getPeerData(
+      peerIPAddress,
+      { password: commonPassword, port: peerSSHPort },
+    ));
+  } catch (subError) {
+    stderr(`Failed to get peer data; CAUSE: ${subError}`);
+
+    response.status(500).send();
+
+    return;
+  }
+
+  stdoutVar({ peerHostUUID, isPeerReachable });
+
+  if (!isPeerReachable) {
+    stderr(
+      `Cannot connect to peer; please verify credentials and SSH keys validity.`,
+    );
+
+    response.status(400).send();
+
+    return;
+  }
+
+  try {
+    localIPAddress = sub('find_matching_ip', {
+      subModuleName: 'System',
+      subParams: { host: peerIPAddress },
+    }).stdout;
+  } catch (subError) {
+    stderr(`Failed to get matching IP address; CAUSE: ${subError}`);
+
+    response.status(500).send();
+
+    return;
+  }
+
+  stdoutVar({ localIPAddress });
+
+  const pgpassFilePath = '/tmp/.pgpass';
+  const pgpassFileBody = `${peerIPAddress}:${commonDBPort}:${commonDBName}:${commonDBUser}:${commonPassword.replace(
+    /:/g,
+    '\\:',
+  )}`;
+
+  stdoutVar({ pgpassFilePath, pgpassFileBody });
+
+  try {
+    sub('write_file', {
+      subModuleName: 'Storage',
+      subParams: {
+        body: pgpassFileBody,
+        file: pgpassFilePath,
+        mode: '0600',
+        overwrite: 1,
+        secure: 1,
+      },
+    });
+  } catch (subError) {
+    stderr(`Failed to write ${pgpassFilePath}; CAUSE: ${subError}`);
+
+    response.status(500).send();
+
+    return;
+  }
+
+  try {
+    const [rawIsPeerDBReachable] = sub('call', {
+      subModuleName: 'System',
+      subParams: {
+        shell_call: `PGPASSFILE="${pgpassFilePath}" ${SERVER_PATHS.usr.bin.psql.self} --host ${peerIPAddress} --port ${commonDBPort} --dbname ${commonDBName} --username ${commonDBUser} --no-password --tuples-only --no-align --command "SELECT 1"`,
+      },
+    }).stdout as [output: string, returnCode: number];
+
+    isPeerDBReachable = rawIsPeerDBReachable === '1';
+  } catch (subError) {
+    stderr(`Failed to test connection to peer database; CAUSE: ${subError}`);
+  }
+
+  try {
+    rm(pgpassFilePath);
+  } catch (fsError) {
+    stderr(`Failed to remove ${pgpassFilePath}; CAUSE: ${fsError}`);
+
+    response.status(500).send();
+
+    return;
+  }
+
+  stdoutVar({ isPeerDBReachable });
+
+  if (!isPeerDBReachable) {
+    stderr(
+      `Cannot connect to peer database; please verify database credentials.`,
+    );
+
+    response.status(400).send();
+
+    return;
+  }
+
+  const localHostUUID = getLocalHostUUID();
+
+  try {
+    const {
+      database: {
+        [localHostUUID]: { port: rawLocalDBPort },
+      },
+    } = getAnvilData({ database: true }) as { database: DatabaseHash };
+
+    localDBPort = sanitize(rawLocalDBPort, 'number');
+  } catch (subError) {
+    stderr(`Failed to get local database data from hash; CAUSE: ${subError}`);
+
+    response.status(500).send();
+
+    return;
+  }
+
+  const jobCommand = `${SERVER_PATHS.usr.sbin['striker-manage-peers'].self} --add --host-uuid ${peerHostUUID} --host ${peerIPAddress} --port ${commonDBPort} --ping ${commonPing}`;
+  const peerJobCommand = `${SERVER_PATHS.usr.sbin['striker-manage-peers'].self} --add --host-uuid ${localHostUUID} --host ${localIPAddress} --port ${localDBPort} --ping ${commonPing}`;
+
+  try {
+    job({
+      file: __filename,
+      job_command: jobCommand,
+      job_data: `password=${commonPassword}
+peer_job_command=${peerJobCommand}`,
+      job_description: 'job_0012',
+      job_name: 'striker-peer::add',
+      job_title: 'job_0011',
+    });
+  } catch (subError) {
+    stderr(`Failed to add peer ${peerHostUUID}; CAUSE: ${subError}`);
+
+    response.status(500).send();
+
+    return;
+  }
+
+  response.status(201).send();
+};

striker-ui-api/src/lib/request_handlers/host/deleteHostConnection.ts

@@ -0,0 +1,42 @@
+import { RequestHandler } from 'express';
+
+import SERVER_PATHS from '../../consts/SERVER_PATHS';
+
+import { job } from '../../accessModule';
+import { toHostUUID } from '../../convertHostUUID';
+import { stderr } from '../../shell';
+
+export const deleteHostConnection: RequestHandler<
+  unknown,
+  undefined,
+  DeleteHostConnectionRequestBody
+> = (request, response) => {
+  const { body } = request;
+  const hostUUIDs = Object.keys(body);
+
+  hostUUIDs.forEach((key) => {
+    const hostUUID = toHostUUID(key);
+    const peerHostUUIDs = body[key];
+
+    peerHostUUIDs.forEach((peerHostUUID) => {
+      try {
+        job({
+          file: __filename,
+          job_command: `${SERVER_PATHS.usr.sbin['striker-manage-peers'].self} --remove --host-uuid ${peerHostUUID}`,
+          job_description: 'job_0014',
+          job_host_uuid: hostUUID,
+          job_name: 'striker-peer::delete',
+          job_title: 'job_0013',
+        });
+      } catch (subError) {
+        stderr(`Failed to delete peer ${peerHostUUID}; CAUSE: ${subError}`);
+
+        response.status(500).send();
+
+        return;
+      }
+    });
+  });
+
+  response.status(204).send();
+};

striker-ui-api/src/lib/request_handlers/host/getHostConnection.ts

@@ -42,16 +42,7 @@ export const getHostConnection = buildGetRequestHandler(
   (request, buildQueryOptions) => {
     const { hostUUIDs: rawHostUUIDs } = request.query;
 
-    let rawDatabaseData: {
-      [hostUUID: string]: {
-        host: string;
-        name: string;
-        password: string;
-        ping: string;
-        port: string;
-        user: string;
-      };
-    };
+    let rawDatabaseData: DatabaseHash;
 
     const hostUUIDField = 'ip_add.ip_address_host_uuid';
     const localHostUUID: string = getLocalHostUUID();

striker-ui-api/src/lib/request_handlers/host/index.ts

@@ -1,4 +1,6 @@
 export * from './createHost';
+export * from './createHostConnection';
+export * from './deleteHostConnection';
 export * from './getHost';
 export * from './getHostConnection';
 export * from './getHostDetail';

striker-ui-api/src/lib/request_handlers/host/prepareHost.ts

@@ -11,7 +11,7 @@ import SERVER_PATHS from '../../consts/SERVER_PATHS';
 
 import { job, variable } from '../../accessModule';
 import { sanitize } from '../../sanitize';
-import { stderr, stdout } from '../../shell';
+import { stderr } from '../../shell';
 
 export const prepareHost: RequestHandler<
   unknown,

striker-ui-api/src/lib/request_handlers/ssh-key/deleteSSHKeyConflict.ts

@@ -3,6 +3,7 @@ import { RequestHandler } from 'express';
 import SERVER_PATHS from '../../consts/SERVER_PATHS';
 
 import { job } from '../../accessModule';
+import { toHostUUID } from '../../convertHostUUID';
 import { stderr } from '../../shell';
 
 export const deleteSSHKeyConflict: RequestHandler<
@@ -13,8 +14,9 @@ export const deleteSSHKeyConflict: RequestHandler<
   const { body } = request;
   const hostUUIDs = Object.keys(body);
 
-  hostUUIDs.forEach((hostUUID) => {
-    const stateUUIDs = body[hostUUID];
+  hostUUIDs.forEach((key) => {
+    const hostUUID = toHostUUID(key);
+    const stateUUIDs = body[key];
 
     try {
       job({

striker-ui-api/src/routes/host.ts

@@ -2,6 +2,8 @@ import express from 'express';
 
 import {
   createHost,
+  createHostConnection,
+  deleteHostConnection,
   getHost,
   getHostConnection,
   getHostDetail,
@@ -9,14 +11,18 @@ import {
   updateHost,
 } from '../lib/request_handlers/host';
 
+const CONNECTION_PATH = '/connection';
+
 const router = express.Router();
 
 router
   .get('/', getHost)
-  .get('/connection', getHostConnection)
+  .get(CONNECTION_PATH, getHostConnection)
   .get('/:hostUUID', getHostDetail)
   .post('/', createHost)
+  .post(CONNECTION_PATH, createHostConnection)
   .put('/prepare', prepareHost)
-  .put('/:hostUUID', updateHost);
+  .put('/:hostUUID', updateHost)
+  .delete(CONNECTION_PATH, deleteHostConnection);
 
 export default router;

striker-ui-api/src/types/CreateHostConnectionRequestBody.d.ts

@@ -0,0 +1,11 @@
+type CreateHostConnectionRequestBody = {
+  dbName?: string;
+  ipAddress: string;
+  isPing?: boolean;
+  // Host password; same as database password.
+  password: string;
+  port?: number;
+  sshPort?: number;
+  // database user.
+  user?: string;
+};

striker-ui-api/src/types/DeleteHostConnectionRequestBody.d.ts

@@ -0,0 +1,3 @@
+type DeleteHostConnectionRequestBody = {
+  [hostUUID: string]: string[];
+};