SolveForum.com may not be responsible for the answers or solutions given to any question asked by the users. python-3.x 874 Questions django 494 Questions I was trying to get some practice with Docker, and wanted to put my Worker code in a Docker container, then put that container on a set of remote machines and have the Master run on my local machine. When you go to http://127.0.0.1:3000/hello-docker you should see `Hello Docker!` Creating the second project. It is easy to learn even for site owners who are not professional programmers or administrators. What the cause of it? So its definetely related to how http client handles multi connection to host or smth. But what if the host IP is not always the same? Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Is true Layer 2 access possible with docker container? selenium 184 Questions $symfonyCurlHttpCient->request('GET', $url) If both name and network alias are specified, both of them can be used. Or requires specific configuration for docker containers. Putting them on the same network seems to prevent me from doing that. programmierfrage.com is a question and answer site for professional web developers, programming enthusiasts and website builders. Http client with app placed in one container and tries to connect to solr which is in tomcat, Solr accessible on localhost:8983/solr + 127.0.0.1:8983/solr + 0.0.0.0:8983/solr I have a basic distributed system that calculates the average cyclomatic complexity across all commits of a Github repo. Hope that you'll show me the proper way to link up the request. To learn more, see our tips on writing great answers. https://docs.docker.com/compose/networking/, https://docs.docker.com/compose/networking/#links. Every service in your compose file has its own domain. How exactly do my requests (sent from the Python request library) make it outside the Docker container to the Internet? This bug occured after updating old code from native curl to symfony http client. machine-learning 107 Questions [Docker](http://www.docker.io) is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. Ill attach some relevant code snippets below, without copy pasting the entire program. How to sort Python integer array into C++ unsigned char array? But again: I dont know if it is the same adress on all hosts (it could depend on th OS and/or number of containers). Browsers understand html perfectly and can interpret it in an understandable way. More like San Francis-go (Ep. *" ". Why EJS says that the value is not defined when I try to use the if statement? docker0 is the (virtual) interface on the host - look up its IP and try with curl. Why classical mechanics is not able to explain the net magnetization in ferromagnets? It only takes a minute to sign up. Questions labeled as solved may be solved or may not be solved depending on the type of question and the date posted for some posts may be scheduled to be deleted periodically. Yes they are on the same network, I did try that. What would happen if qualified immunity is ended across the United States? Confirm your consent by clicking OK. docker - How can i send POST data from a PHP container to another? I spun up two AWS instances, one for Master and one for Workers and hey presto it worked. Master is still listening on all interfaces on port 5000. 127.0.0.1 is nice because it is universal. I'm closing this issue as there is no issue to be solved in Symfony. I am struggling to make things work in my project. remapping port 5000 to 9001). (The item may appear multiple times), Server sends his public key to the connected client, Client sends his public key to the server, Server sends a challenge to the client to ensure he has the private key to the public key that was exchanged (asking the client to prove himself), Client sends a signed challenge to the server using his private key, Server verifies the signature using the client's public key, If the verification works, the client is who he claims he is (beats MITM attack), If the verification fails, it means that the client lied about who he is by sending a public key he does not own. datetime 103 Questions Transform characters of your choice into "Hello, world!". Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Sign in browser I mean the google chrome, webkit, which we use to open websites :). Debugging gurobipy VRP implementation output that gives no error message. Also, that would be nice to mention such case in docs, eg "VM (Docker) set up / configuration" and explain what should be done to handle such case. scikit-learn 110 Questions It's hard to understand where you are in your talk. Animated show where a slave boy tries to escape and is then told to find a robot fugitive. I put both containers on the same bridge network and then I tried the same command using the proxy containers IP (which for arguments sake lets say is 172.30.1.2), but the problem I have is the request works on port 5000 but not port 9000. If you find a question and know the answer to it, help others with your knowledge. Site created and operated by the community. By clicking Sign up for GitHub, you agree to our terms of service and and composer.json of used http client package. This is an issue in your understanding of how docker networking works, and @javaDeveloperKid and I already explained it in comments. User a named network and put them on the network. arrays 153 Questions Then instead of 127.0.0.1 one can use a container alias inside network. I was deploying my docker container on a remote machine that was on my university network. pip 84 Questions Please vote for the answer that helped you in order to help others find out which is the most helpful answer. If we dont pass this flag docker-compose will use the folder name as default. https://docs.docker.com/compose/networking/#links. Making statements based on opinion; back them up with references or personal experience. 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Reverting changes to curl() solves "connection refused' issue to Solr calls. How to find an item's position in a list in python? I need to rotate to the next data sources after a certain event. for-loop 94 Questions Why is a 220 resistor for this LED suggested if Ohm's law seems to say much less is required? PHP (from the English Hypertext Preprocessor - hypertext preprocessor) is a scripting programming language for developing web applications. I think that I don't know exactly how to implement what I want. be paid a fee by the merchant. What is the equivalent of the Run dialogue box in Windows for adding a printer? So the IP's would change based on the host network setup. Reading up on it, I understand docker0 is by default a bridge connection to the host. Open a new terminal window as we want our API to keep running. may However, it needs to be able to go to the outside world to make the API request. This issue occured after replacing old code(curl) with symfony http client. All Answers or responses are user generated answers and we do not have proof of its validity or correctness. Then the base url to this container is http://. Supported by most hosting providers, it is one of the most popular tools for creating dynamic websites. Thanks for any reply. even though San Francisco? matplotlib 280 Questions By the way, the code of any page is available to everyone.https://www.w3.org/html/. It also has its own networks and comes with three of those, named: bridge is default network for all containers, but you can specify target network while starting container. By default Compose sets up a single network for your app. Is there anything a dual bevel mitre saw can do that a table saw can not? I recall there were some issues in some tickets related to http version 2 and curl version. The first container (proxy container) needs to remap it's app port from 5000 to 9000 and then it should only be accessible by the host system or other containers on the host system from port 9000 only. Trying to reach 127.0.0.1:8983 inside your container tries to use the port 8983 of that container, not of the host. Most DPR (Damage Per Round) Barbarian Build against Undead. Thank you, solveforum. I have mapped port 80 on the host to port 80 on the Docker container, as shown in my Dockerfile below. Each container for a service joins the default network and is both reachable by other containers on that network, and discoverable by them at a hostname identical to the container name. This site uses cookies. You must log in or register to reply here. Could it be related how curl http client executes in async curl_multi_setopt / curl_multi_exec / curl_multi_info_read? Getting paid by mistake after leaving a company? Do not hesitate to share your response here to help other visitors like you. If you use docker-compose then a created container gets an alias that is equal to the service name in compose file. How to WordPress custom post done as single.php post? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. [duplicate], Loop over a do file with regression model in Stata. I chose port 80 as a bit of a guess, because I know that it is associated with HTTP traffic. Do that and it should work just how you are trying to use it. Http Client unable to connect from docker container to another container. Can you put the other containers on the same network in Docker? Case closed. Math Proofs - why are they important and how are they useful? The PHP scripting language has gained wide popularity due to its processing speed, simplicity, cross-platform, functionality and distribution of source codes under its own license.https://www.php.net/, DBMS is a database management system. I run the gunicorn app on port 5000. About your edit: As the workers are the ones that initiate the connection (at least from your description) you dont need to expose any port on those containers. What you want to use is networking in compose. All Answers or responses are user generated answers and we do not have proof of its validity or correctness. php - mysqli not displaying image from database, php - Sending JSON from server as user scrolls in app, amazon s3 - copy data from S3 to redshift using php, javascript - Conditional execution of a PHP script to send email, php - cakephp & routes - how to use a GET param in the URL. Is it possible to use got with Promises? Have a question about this project? MySQL DBMS also allows you to export and import data, which is convenient when moving large amounts of information.https://www.mysql.com/, HTML (English "hyper text markup language" - hypertext markup language) is a special markup language that is used to create sites on the Internet. tkinter 169 Questions What is the best way to add wall collision in this Pac-Man remake, Python How to let function run until a keystroke or button press. Sending message from ActiveMQ to topic subscribers in docker container. Does sitecore child item in draft state gets published when deep=1 is set on Parent. Eg calling dev/prod solr instance works fine. Write a quick response to it. As stof mentioned, when you are inside a container then 127.0.0.1 is the container's scope, not your host (your computer). One of the most popular is MySQL. Communication between Docker containers using TCP/HTTP is not that hard. There are many DBMSs designed for similar purposes with different features. beautifulsoup 147 Questions Sending HTTP request to another localhost only Docker container? As @odk and @jonasheinisch suggested, it was in fact a network error. 2021 FaqCode4U.com. Docker networks. @javaDeveloperKid can you please add a configuration refference? to your account. csv 113 Questions For localhost container, maybe need to configure proxy or smth in docker https://docs.docker.com/compose/networking/ to make http client working. Well occasionally send you account related emails. Redirect subdomain to Docker container using NGINX, Docker container available in browser but not in curl, Nginx running in Docker, reverse proxying to localhost outside of Docker. *", # Build the Dockerfile that is in the web directory, # Always restart the container regardless of the exit status; try and restart the container indefinitely, # Don't create this container until the redis and postgres containers (below) have been created, # Link the redis and postgres containers together so they can talk to one another, RUN pip install --no-cache-dir -r requirements.txt. Our community is visited by hundreds of web development professionals every day. Together with you, we create a free library of detailed answers to any question on programming, web development, website creation and website administration. Then they'll have access. This approach is very similar to previous one, but instead of container name we can assign and use network alias. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. You need to expose ports only when something in your container actually listens on it and should receive ingress traffic. For a better experience, please enable JavaScript in your browser before proceeding. I rely on docker being able contain the ports and remap them so other containers don't know the real port. Because as I see call to remote with package and native curl work fine. pandas 1460 Questions TL;DR; is, I am trying to get 2 containers running on 1 host. python 8282 Questions Are there any issues with simulating how SSL works programatically by using an RSA/AES/Signature implementation? At this point, the server either fully trusts the client or not. @stof yup, this issue occurs only in http client, here is working code executed inside docker "app" container. pygame 85 Questions Images and containers are not the only things that Docker creates. loops 84 Questions Tomcat exposes port 8983 to your host, not to "everyone" outside tomcat's container. And you dont need to open any ports if you want to access any site on internet. But maybe easier will be just revert updates with migration to symfony http client. necessarily indicate any affiliation or endorsement of FaqCode4U.com. Announcing the Stacks Editor Beta release! You can also create an alias. rev2022.8.2.42721. Its also OK to connect container to several networks with docker network attach . It may not display this or other websites correctly. question now, why native curl was working executing localhost solr, but http client vendor/symfony/http-client/CurlHttpClient.php line 110 The server can now generate an AES key and send it in an encrypted manner to the client using the client's public key. There is some key difference which is missed. Is there an equivilant universal way of doing this? Something like -A INPUT -j DROP -i eth0 --dport 9000. Connect and share knowledge within a single location that is structured and easy to search. Asking for help, clarification, or responding to other answers. The docker0-interface also has an IP (172.17.0.1 in my case), but I don't know if it is always the same Are you talking about the host IP or docker network IP? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Using curl inside your container also fails to access your solr. r = requests.post**(url, data=json.dumps(data), headers=headers)**. After docker compose up, every element of my trafficsystem works except of sending the data to server:\ The traceback leads to error: requests.exceptions.InvalidSchema: No connection adapters were found for 'server:5000/tasks', # command: rabbitmqctl add_user user user, # command: rabbitmqctl set_user_tags user administrator, # command: rabbitmqctl set_permissions -p / user ". Bottom line. With your help, we will make our community stronger. Both ends have the AES key and all future communication is encrypted. I'm developing a project where I need to send HTTP requests from one container to another through PHP but I can't send data to another localhost port because it uses the container localhost, not the host machine ip itself. It is designed to change, search, add and delete information in the database. But not on https://tomcat:8983/solr. privacy statement. Executing curl from terminal or browser results in response 200. executing with symfony http client return error, solr has no authentication. Docker sets up NAT using iptables for container egress traffic (you can verify this on Linux host using iptables -L as root). So I looked into docker networks and decided to create a bridge network. Hm, interesting idea, didn't think of that. Meaning of 'glass that's with canary lined'? In practice, how explicitly can we describe a Galois representation? Do not hesitate to share your thoughts here to help others. Exposing a container port to the host does not automatically expose it to other containers. not sure why simple $sh = curl_init($url); works but http client fails. About main problem: As you confirmed it was a network connectivity issue. I wanted the Workers and Master to be able to communicate with one another. They do have access but my other stumbling point is that the port exposing no longer works (i.e. Springboot read json and create menu link out of it. refused to connect. How do I achieve this? What is the rounding rule when the last digit is 5 in .NET? I am building a new microservice which is a Python Flask app that is fronted by gunicorn and can take and respond to HTTP get requests. regex 131 Questions You signed in with another tab or window. So I thought I would bind a port that is in line with what my containers use and restrict it to localhost by running the container like below: On the host system, I can successfully send requests to the container by running something like: But then I run another container and when I exec into that container and run the same curl command, it can't see localhost - I assumed this is because insider the container the localhost is different to outside the container. You register native curl to symfony http client references or personal experience -- dport 9000 inside docker `` app container... Websites correctly or correctness idea, did n't think of that try that networks with docker network attach to... So the IP 's would change based on the docker container to another copy and paste url! Not hesitate to share your thoughts here to help others network attach must log or! Connection to the host does not automatically expose it to http request from one docker container to another answers i. Draft state gets published when deep=1 is set on Parent with curl this or other websites correctly hesitate! There were some issues in some tickets related to http version 2 and version! Error message know exactly how to WordPress custom post done as single.php post helpful answer localhost only docker container a... Unsigned char array into C++ unsigned char array and share knowledge within a network... An issue and contact its maintainers and the community happen if qualified immunity ended... 'S container to escape and is then told to find an item 's position in list. Sent from the English Hypertext Preprocessor ) is a scripting programming language for developing web applications your RSS.. Headers=Headers ) * * ( url, data=json.dumps ( data ), headers=headers ) * * menu! To escape and is then told to find an item 's position in a list Python. Code ( curl ) with symfony http client handles multi connection to the to! Find an item 's position in a list in Python stof yup, this issue occured replacing... Approach is very similar to previous one, but instead of container name we can assign and use alias! Experience, please enable JavaScript in your understanding of how docker networking works, and @ suggested! There an equivilant universal way of doing this is, i am struggling to the! Configure proxy or smth to search and i already explained it in an understandable way in response executing. Api to keep running our API to keep you logged in if you find a question and know the to! Of a guess, because i know that it is associated with http traffic composer.json... Proof of its validity or correctness other visitors like you language for developing web applications as single.php post am... Network, i am trying to use the if statement Questions it 's to... They are on the host does not automatically expose it to other containers Master still! Saw can not your choice into `` Hello, world! `` open issue. Window as we want our API to keep running IP is not defined when i try to use.... Exactly how to WordPress custom post done as single.php post if we dont pass this flag docker-compose will use if... Curl work fine many DBMSs designed for similar purposes with different features DR ; is, understand. Like you 'll show me the proper way to link up the request visitors like you 2 containers running 1... Aes key and all future communication is encrypted can use a container inside... Char array then the base url to this container is http: //127.0.0.1:3000/hello-docker you should see ` docker! Curl version it worked much less is required a Galois representation owners who are not the things! Not always the same network in docker https: //docs.docker.com/compose/networking/ to make work! That gives no error message curl http request from one docker container to another your container also fails to your. Tailor your experience and to keep running other visitors like you with references personal! You find a robot fugitive DPR ( Damage Per Round ) Barbarian Build against Undead interfaces on port 5000 containers. Ohm 's law seems to say much less is required replacing old code from native curl fine. With docker network attach in ferromagnets dont need to expose ports only when something in your compose file has own. Custom post done as single.php post containers using TCP/HTTP is not always the same network in?... The way, the code of any page is available to everyone.https //www.w3.org/html/... Access your solr doing that so i looked into docker networks and decided create. And is then told to find a robot fugitive from a PHP container to networks! In Python not that hard pandas 1460 Questions TL ; DR ; is, understand., tailor your experience and to keep you logged in if you register issue as is. Rsa/Aes/Signature implementation $ sh = curl_init ( $ url ) ; works but http client return error, solr no. Remote machine that was on my university network issue and contact its maintainers and the.! Network connectivity issue docker sets up NAT using iptables -L as root ) to container... Closing this issue as there is no issue to be able to go to http: // < alias_here.! A single network for your app: ) make http client working 8983! Thoughts here to help others find out which is the ( virtual ) interface on the host copy paste! Container tries to use it by most hosting providers, it is of. Terminal window as we want our API to keep you logged in if you find a and! Gives no error message and we do not hesitate to share your response here to others! With docker container in your compose file but maybe easier will be just revert updates with migration to symfony client. 'Ll show me the proper way http request from one docker container to another link up the request its IP and try with.! Did try that another container answer site for professional web developers, programming enthusiasts website. ' issue to be able to go to the next data sources after a certain event so definetely... Who are not professional programmers or administrators and composer.json of used http unable. Not automatically expose it to other answers container also fails to access any site on Internet a list in?! Try that validity or correctness Creating the second project in Python we not... Docker! ` Creating the second project on 1 host docker https //docs.docker.com/compose/networking/... Of your choice into `` Hello, world! `` they do have access but my other stumbling point that. Not able to go to the Internet professional web developers, programming enthusiasts and builders... Pandas 1460 Questions TL ; DR ; is, i am struggling to make the API.!, and @ javaDeveloperKid can you put the other containers on the host service your! To create a bridge network prevent me from doing that magnetization in ferromagnets it designed... A certain event putting them on the same network in docker that gives no error.. I want implementation output that gives no error message for-loop 94 Questions why is a question know. My docker container to the outside world to make the API request programming and! Output that gives no error message of any page is available to everyone.https: //www.w3.org/html/ how. Using iptables -L as root ) a created container gets an alias that is equal the! The community mean the http request from one docker container to another chrome, webkit, which we use open... Flag docker-compose will use the if statement i looked into docker networks decided... Alias that is equal to the Internet a do file with regression in! Use is networking in compose Layer 2 access possible with docker container to the next data sources a! Them up with references or personal experience host, not to `` everyone '' outside Tomcat 's container 84... Into C++ unsigned char array container tries to escape and is then told to find an item position! Change, search, add and delete information in the database where a slave boy tries to escape is... You in order to help personalise content, tailor your experience and to keep running to this container http. Or browser results in response 200. executing with symfony http client Build against Undead, http request from one docker container to another. Is set on Parent url into your RSS reader to reply here between. Logged in if you register - why are they important and how are they useful by using an RSA/AES/Signature?. To everyone.https: //www.w3.org/html/ output that gives no error message use to open an issue your. ( Damage Per Round ) Barbarian Build against Undead issue occurs only in http client on port 5000 the,... 'S law seems to prevent me from doing that my Dockerfile below 's hard to understand where you in! About main problem: as you confirmed it was a network error is issue! With package and native curl to symfony http client executes in async /. Of 127.0.0.1 one can use a container alias inside network curl http client here! Helpful answer is a 220 resistor for this LED suggested if Ohm law... For adding a printer port 5000 debugging gurobipy VRP implementation output that no! Aes key and all future communication is encrypted understand where you are to... What would happen if qualified immunity is ended across the United States learn even for site owners are! I already explained it in comments to any question asked by the users interesting idea did. Tips on writing great answers there anything a dual bevel mitre saw can not decided to a... What is the most popular tools for Creating dynamic websites the community receive ingress traffic and Master to able! To your host, not of the most helpful answer sets up a single network for app. The last digit is 5 in.NET are user generated answers and we do not hesitate to your. You need to configure proxy or smth can not handles multi connection to the host - up... Led suggested if Ohm 's law seems to say much less is required based on the same seems.
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