rubocop

src/lib/installation/ssh_key.rb

@@ -47,11 +47,11 @@ def write_files(dir)
       files.each do |file|
         path = File.join(dir, file.filename)
         IO.write(path, file.content)
-        if file.filename.match(/^ssh_host_.*(key)$/)
+        if file.filename =~ /^ssh_host_.*(key)$/
           # ssh deamon accepts only private keys with restricted
           # file permissions.
           log.info("Set permissions of #{file.filename} to 0600")
-          File.chmod(0600, path)
+          File.chmod(0o600, path)
         else
           # Taking already given permissions
           log.info("Set permissions of #{file.filename} to #{file.permissions.to_s(8)}")

test/ssh_key_test.rb

@@ -8,12 +8,12 @@
 
   describe "#write_files" do
     before do
-      sshkey.read_files(FIXTURES_DIR.join("root2/etc/ssh",subject.name).to_s)
+      sshkey.read_files(FIXTURES_DIR.join("root2/etc/ssh", subject.name).to_s)
     end
 
     it "writes ssh keys with the right permissions" do
       expect(IO).to receive(:write).twice
-      expect(File).to receive(:chmod).with(0600,
+      expect(File).to receive(:chmod).with(0o600,
         "/mnt/etc/ssh/ssh_host_ed25519_key")
       expect(File).to receive(:chmod).with(33188,
         "/mnt/etc/ssh/ssh_host_ed25519_key.pub")