Web-based application that allows users to monitor servers availability in a local network by performing ping tests and displaying their up/down status.
License: MIT License
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Issue: When running the application via Docker compose on a separate Server/VM, the Angular FrontEnd UI cannot be used as it's always pointing to "localhost" baseApiUrl. Also, the BackEnd Spring Boot REST API has hardcoded "localhost" URLs for setAllowedOrigins in its CORS configuration.
Environment: Docker compose on Redhat 8.9 VM running on Windows "Hyper-V Manager"
cat /etc/redhat-release
# Red Hat Enterprise Linux release 8.9 (Ootpa)
ip addr show eth0
# inet 172.23.100.64
sudo yum list installed | grep "docker"
# containerd.io.x86_64 1.6.28-3.1.el8 @docker-ce-stable
# docker-buildx-plugin.x86_64 0.12.1-1.el8 @docker-ce-stable
# docker-ce.x86_64 3:25.0.3-1.el8 @docker-ce-stable
# docker-ce-cli.x86_64 1:25.0.3-1.el8 @docker-ce-stable
# docker-ce-rootless-extras.x86_64 25.0.3-1.el8 @docker-ce-stable
# docker-compose-plugin.x86_64 2.24.6-1.el8 @docker-ce-stableExpected Result:
Actual Result:
Error: Error Code: 0, Message: Http failure response for http://localhost:8080/api/servers: 0 Unknown Error
Notes:
Useful commands:
# Fix for
# ERROR [spring-api build 6/9] RUN ./mvnw dependency:go-offline -B
# > [spring-api build 6/9] RUN ./mvnw dependency:go-offline -B:
# 0.194 /bin/sh: 1: ./mvnw: Permission denied
chmod +x mvnw# Revert to original code:
git stash save "Fix hardcoded API_URL and ALLOWED_ORIGINS URL for CORS"
git stash list
git stash popdocker compose build angular-client
docker compose build spring-api
docker compose up -d mysql-db
docker compose logs -f mysql-db
docker compose up -d
docker compose logs -f angular-client spring-api
docker compose logs -f angular-client
docker compose logs -f spring-apidocker ps -a
docker compose down -v --remove-orphans
docker container prune -a
docker image ls
docker image prune -a
# docker system prune -ahttps://stackoverflow.com/questions/35228970/docker-compose-build-single-container
(Saturday, March 02, 2024)
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