Initial webhook receiver

Change-Id: I4786b133f103a65a381e2b281224b0a9bc8d4182
Related-bug: PROD-24880 (PROD:24880)
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..d2154e7
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,22 @@
+asn1crypto==0.24.0
+certifi==2018.10.15
+cffi==1.11.5
+chardet==3.0.4
+Click==7.0
+cryptography==2.4.1
+enum34==1.1.6
+Flask==1.0.2
+idna==2.7
+ipaddress==1.0.22
+itsdangerous==1.1.0
+Jinja2==2.10
+MarkupSafe==1.1.0
+pycparser==2.19
+pyOpenSSL==18.0.0
+PyYAML==3.13
+requests==2.20.1
+simple-salesforce==0.74.2
+simple-settings==0.13.0
+six==1.11.0
+urllib3==1.24.1
+Werkzeug==0.14.1