Add test to check whether the plugin mounts the entire ssh dir

This test makes sure the plugin actually mounts the SSH directory into
the container, if the dockerizePip and dockerSsh are given.
It does this by creating a new known_hosts file and placing the RSA
fingerprint of Github inside, then installing a package via Git, which
requires this fingerprint to be present in known_hosts.
If it is not present, the process will fail.

This patch also adds minor debugging output, in case no
requirements.txt is found.

Author: jacksgt

lib/pip.js

@@ -492,6 +492,9 @@ function installRequirementsIfNeeded(
 
   // Skip requirements generation, if requirements file doesn't exist
   if (!requirementsFileExists(servicePath, options, fileName)) {
+    serverless.cli.log(
+      `Skipping generation of requirements: file ${fileName} not found`
+    );
     return false;
   }
 

test.js

@@ -9,12 +9,14 @@ const {
   removeSync,
   readFileSync,
   copySync,
+  ensureFileSync,
+  appendFileSync,
   writeFileSync,
   statSync,
   pathExistsSync
 } = require('fs-extra');
 const { quote } = require('shell-quote');
-const { sep } = require('path');
+const { sep, resolve } = require('path');
 
 const { getUserCachePath, sha256Path } = require('./lib/shared');
 
@@ -396,6 +398,35 @@ test(
   { skip: !canUseDocker() }
 );
 
+test(
+  'dockerSsh mounts entire ssh folder into docker',
+  t => {
+    process.chdir('tests/base');
+    const path = npm(['pack', '../..']);
+    npm(['i', path]);
+    // create a known_hosts file with the rsa fingerprint of github
+    // the plugin should mount the entire .ssh directory into the container
+    const known_hosts_file = resolve(process.env.HOME, `./.ssh/known_hosts`);
+    ensureFileSync(known_hosts_file);
+    appendFileSync(
+      known_hosts_file,
+      'github.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ=='
+    );
+    // verify this by installing a requirement via git+ssh
+    sls([
+      '--dockerizePip=true',
+      '--dockerSsh=true',
+      '--fileName=requirements-w-git-ssh.txt',
+      'package'
+    ]);
+    const zipfiles = listZipFiles('.serverless/sls-py-req-test.zip');
+    // check if the requirement is actually in the archive
+    t.true(zipfiles.includes(`boto3/__init__.py`), 'boto3 is packaged via ssh');
+    t.end();
+  },
+  { skip: !canUseDocker() }
+);
+
 test('py2.7 can package flask with default options', t => {
   process.chdir('tests/base');
   const path = npm(['pack', '../..']);

tests/base/requirements-w-git-ssh.txt

@@ -0,0 +1,3 @@
+flask
+bottle
+git+ssh://[email protected]/boto/boto3.git#egg=boto3

tests/base/serverless.yml

@@ -10,6 +10,7 @@ custom:
   pythonRequirements:
     zip: ${opt:zip, self:custom.defaults.zip}
     dockerizePip: ${opt:dockerizePip, self:custom.defaults.dockerizePip}
+    dockerSsh: ${opt:dockerSsh, self:custom.defaults.dockerSsh}
     slim: ${opt:slim, self:custom.defaults.slim}
     slimPatterns: ${file(./slimPatterns.yml):slimPatterns, self:custom.defaults.slimPatterns}
     slimPatternsAppendDefaults: ${opt:slimPatternsAppendDefaults, self:custom.defaults.slimPatternsAppendDefaults}
@@ -24,6 +25,7 @@ custom:
     slimPatternsAppendDefaults: true
     zip: false
     dockerizePip: false
+    dockerSsh: false
     individually: false
     useStaticCache: true
     useDownloadCache: true
@@ -49,5 +51,3 @@ functions:
     package:
       include:
         - 'fn2/**'
-
-