diff --git a/error-pages/.dockerignore b/error-pages/.dockerignore
new file mode 100644
index 0000000..2f1ecf2
--- /dev/null
+++ b/error-pages/.dockerignore
@@ -0,0 +1,2 @@
+.dockeringore
+built
diff --git a/error-pages/Dockerfile b/error-pages/Dockerfile
new file mode 100644
index 0000000..f2c6f24
--- /dev/null
+++ b/error-pages/Dockerfile
@@ -0,0 +1,5 @@
+FROM python:3.8-alpine
+
+WORKDIR /home/python
+COPY . .
+RUN mkdir -m 777 built
diff --git a/error-pages/build.py b/error-pages/build.py
new file mode 100644
index 0000000..55c256b
--- /dev/null
+++ b/error-pages/build.py
@@ -0,0 +1,50 @@
+from typing import NamedTuple, Dict, List, Type
+from os import makedirs, path
+from sys import argv
+
+
+template_path = 'template.html'
+result_path = 'built'
+
+class Substitutions(NamedTuple):
+ title: str
+ description: str
+
+error_messages: Dict[str, Substitutions] = {
+ '403': Substitutions(
+ title='403 - Forbidden',
+ description='You are not allowed to view this resource.'
+ ),
+ '404': Substitutions(
+ title='404 - Not found',
+ description='The requested resource cannot be found.'
+ ),
+ '502': Substitutions(
+ title='502 - Server error',
+ description='Service is under maintenance.'
+ ),
+ '50x': Substitutions(
+ title='50x - Server error',
+ description='There was a problem on our side.'
+ )
+}
+
+
+def substitute(source: str, substitutions: Substitutions) -> str:
+ for i, property_name in enumerate(Substitutions._fields):
+ source = source.replace(f'{{{property_name}}}', str(substitutions[i]))
+ return source
+
+
+if __name__ == '__main__':
+ pages_to_be_built = {k: v for k, v in error_messages.items() if k in argv[1:]}
+
+ with open(template_path) as f:
+ template = f.read()
+
+ makedirs(result_path, mode=0o440, exist_ok=True)
+
+ for name, substitutions in pages_to_be_built.items():
+ with open(path.join(result_path, f'{name}.html'), 'w') as f:
+ html = substitute(template, substitutions)
+ f.write(html)
diff --git a/error-pages/template.html b/error-pages/template.html
new file mode 100644
index 0000000..5255ac7
--- /dev/null
+++ b/error-pages/template.html
@@ -0,0 +1,36 @@
+
+
+
+
+ {title}
+
+
+
+
+
+
+ {description}
+
+