As discussed in my previous post, Alpine Linux goes through several stages when it boots. Just after mounting the boot media, and scanning it for apkovl’s (with nlplug-findfs), there is an option for you to get a console, by setting $SINGLEMODE to yes. Setting SINGLEMODE to yes is easy, you simply add the word “single” [...]
https://github.com/kemalcr/kemal-sessionAnalyse what is happening with your session cookie. In my case, the session cookie was reset everytime I went to login. I realized, that my idea of cleaning up the old session as a first statement after successful login, before setting up the new session is not a good idea. I suspect, that the browser [...]
As your application grows, you would like to move from one big .cr file to separating your code into smaller files.You can use require from your main .cr file to add code from other files:require "./tools/*"This statement will add code from the tools directory, relative to your main .cr file.This will help to separate your [...]
As a beginner in the Crystal language I still struggle to get my head around some of the concepts in it, and develop a feel for coding in Crystal.When I come across difficult problems, which I solve or start to understand, I blog about them, so others can benefit – as lack of documentation is [...]
An example envoy.yaml showing how to route & redirect.There are different options, see herehttps://www.envoyproxy.io/docs/envoy/latest/api-v2/api/v2/route/route.proto#route-redirectactionThis envoy.yaml routes /taxgod and /taxgod/ (the second could probably be omitted because the first one should also match it, I think) to a new port and a different protocol. /picockpit is simply redirected to /and then finally / is routed to [...]
It is possible to rewrite URLs with Envoy for the backend. Please note that the HTML output needs to have the proper routes! (That is why I am not going to investigate further in this direction).REF: https://www.envoyproxy.io/docs/envoy/latest/api-v2/api/v2/route/route.proto#route-route Also note that the string is going to be rendered literally for direct_response –> body –> inline_string, even if [...]
Out of the box envoy is not configured to set up connections with clients connecting to it with the new HTTP/2.HTTP/2 is optimized for the modern web, with binary headers, etc. – higher speed. Since envoy is capable of speaking HTTP/2 to clients, it is a no-brainer to set it up.And the setup is really [...]
static_resources: listeners: - address: socket_address: address: 0.0.0.0 port_value: 80 filter_chains: - filters: - name: envoy.http_connection_manager config: codec_type: auto stat_prefix: ingress_http route_config: virtual_hosts: - name: backend domains: ["*"] routes: - match: { prefix: "/" } redirect: path_redirect: "/" https_redirect: true http_filters: - name: envoy.router config: {} - address: socket_address: address: 0.0.0.0 port_value: 443 filter_chains: - tls_context: [...]
I have already existing containers which I want to use envoy as a proxy & https manager in front of. I am learning to use envoy, and am sharing some of my learnings here, as documentation is a bit confusing to start with.My already existing container is called “taxgod” – it runs a Crystal application [...]
This is an early example of working with envoy. I find the documentation to be difficult to get into, therefore I will try to track my progress by infrequent blog posts on the matter.The following envoy.yaml works for me for http and https rewriting to google:static_resources: listeners: - address: socket_address: address: 0.0.0.0 port_value: 80 filter_chains: [...]