mongodb-org-4.0.repo : No such file or directory al instalar el mongo shell en mi AWS Cloud9

Question

I try to connect to my cluster DocumentDB on AWS from AWS C9 with [this tutorial][1]. But every time I try to connect I get connection failed after 6 attempts:

(scr_env) me:~/environment/sephora $ mongo --ssl --host xxxxxxxxxxxxx:xxxxx --sslCAFile rds-combined-ca-bundle.pem --username username --password mypassword
    MongoDB shell version v3.6.3
    connecting to: mongodb://xxxxxxxxxxxxx:xxxxx/
    2022-03-22T23:12:38.725+0000 W NETWORK  [thread1] Failed to connect to xxx.xx.xx.xxx:xxxxx after 5000ms milliseconds, giving up.
    2022-03-22T23:12:38.726+0000 E QUERY    [thread1] Error: couldn't connect to server xxxxxxxxxxxxx:xxxxx, connection attempt failed :
    connect@src/mongo/shell/mongo.js:251:13
    @(connect):1:6
    exception: connect failed

Indeed it seems to be missing the VPC configuration. So I tried to do with [this documentation][2]. But I do not know how to install the mongo shell on my AWS Cloud9. Indeed, it seems that I cannot create the repository file with the `echo -e "[mongodb-org-4.0] 
ame=MongoDB repository baseurl=...`.
returns: `mongodb-org-4.0.repo: No such file or directory`.

Also, when I tried to install the mongo shell with `sudo yum install -y mongodb-org-shell` which I did not have, and which I installed, it returns `repolist 0`.

[1]: https://www.youtube.com/watch?v=Ild9ay9U_vY
  [2]: https://stackoverflow.com/a/17793856/4764604

Answer

It looks that you're missing the `/etc/yum.repos.d` directory. Are you on a Ubuntu 18 Cloud9 environment by any chance?
If this is the case, then the steps to install the mongo client on Ubuntu are:

1. Add the MongoDB GPG key:

```
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
```
2. Add MongoDB repository:

```
sudo add-apt-repository 'deb [arch=amd64] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse'

```
3. Refresh packages list and install mongo client and tools:

```
sudo apt update
sudo apt install mongodb-org-shell mongodb-org-tools
```

Answer

Hello,
Can you confirm the full echo command? It should be:

```
echo -e "[mongodb-org-4.0] 
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/amazon/2013.03/mongodb-org/4.0/x86_64/
gpgcheck=1 
enabled=1 
gpgkey=https://www.mongodb.org/static/pgp/server-4.0.asc" | sudo tee /etc/yum.repos.d/mongodb-org-4.0.repo
```
For connecting to Amazon DocumentDB I recommend following the [getting started guide](https://docs.aws.amazon.com/documentdb/latest/developerguide/get-started-guide.html), which details the VPC and security group configuration.

mongodb-org-4.0.repo : No such file or directory al instalar el mongo shell en mi AWS Cloud9

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