added read config from param store

Author: mpostument

Dockerfile

@@ -3,6 +3,14 @@ MAINTAINER [email protected]
 
 WORKDIR /opt/7park
 COPY . /opt/7park/
+COPY ops/bootstrap.sh /opt/7park/bootstrap.sh
+COPY ops/branch_to_env.sh /opt/7park/branch_to_env.sh
+COPY ops/print_parameters.py /opt/7park/print_parameters.py
+
+RUN apt update && apt install python3-pip -y && \
+    pip3 install boto3
+
 RUN yarn --ignore-engines
 
-CMD [ "yarn", "start"]
+ENTRYPOINT ["/bin/bash", "bootstrap.sh"]
+CMD ["webserver"]

ops/bootstrap.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+APP_NAME=kepler
+
+echo "Current env=${ENV}"
+
+if [ -z "${ENV}" ]; then
+  source branch_to_env.sh
+fi
+
+export ENVIRONMENT="${ENV}"
+
+echo "Debug variables, ENV=${ENV} APP_NAME=${APP_NAME}"
+python3 print_parameters.py --env="${ENV}" --app="${APP_NAME}" -d
+
+# Load variable:qs to environment
+# shellcheck disable=SC2046
+eval $(python print_parameters.py --env="${ENV}" --app="${APP_NAME}")
+
+case "$1" in
+webserver)
+  yarn start
+  exit
+  ;;
+*)
+  # The command is something like bash. Just run it in the right environment.
+  exec "$@"
+  ;;
+esac

ops/print_parameters.py

@@ -0,0 +1,56 @@
+import argparse
+
+import boto3
+
+
+def _get_params(client, path, next_token, debug):
+    params = []
+    p = dict(
+        Path=path,
+        Recursive=True,
+        ParameterFilters=[],
+        WithDecryption=not debug
+    )
+    if next_token:
+        p['NextToken'] = next_token
+    response = client.get_parameters_by_path(**p)
+    next_token = response.get('NextToken')
+    params.extend(response['Parameters'])
+    if next_token:
+        params.extend(_get_params(client, path, next_token, debug))
+    return params
+
+
+def run(env, app_name, debug=False):
+    all_path = [
+        '/common/',
+        '/{env}/common/'.format(env=env),
+        '/{env}/{app_name}/'.format(env=env, app_name=app_name)]
+
+    # client = boto3.client('ssm')
+    client = boto3.client('ssm', region_name='us-east-1')
+
+    for path in all_path:
+        params = _get_params(client, path, None, debug)
+
+        for param in params:
+            env_var = param['Name'].split(path)[1]
+            if debug:
+                if param['Type'] == 'SecureString':
+                    param['Value'] = '****'
+                print(param)
+            else:
+                print("export {}='{}'".format(env_var, param['Value']))
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Print varialbes from EC2 Parameter Store')
+    parser.add_argument('-d', '--debug', required=False, action='store_true',
+                        help='Debug variables if True or print export commands otherwise')
+    parser.add_argument('-e', '--env', required=True,
+                        help='Environment')
+    parser.add_argument('-a', '--app', required=True,
+                        help='Application name')
+
+    args = parser.parse_args()
+    run(args.env, args.app, args.debug)