CAT EOF generated in a single line fail to run - unix

Question

I have a yaml file where I want to write a XML:
script:
- >
cat > settings.xml << EOF
<?xml version="1.0" encoding="UTF-8"?>
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd" xmlns="http://maven.apache.org/SETTINGS/1.1.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<servers>
<server>
<username>$USERNAME</username>
<password>$PASSWORD</password>
<id>central</id>
</server>
</servers>
</settings>
EOF
If I run the cat command in my terminal, it works but when it's executed by my pipeline, this command become a single line failing:
cat > settings.xml << EOF <?xml version="1.0" encoding="UTF-8"?> <settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd" xmlns="http://maven.apache.org/SETTINGS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <servers> <server> <username>$USER</username> <password>$PASSWORD</password> <id>central</id> </server> </servers> </settings> EOF
With the error:
parse error near `<'
Any idea how to fix this error or generate a well formated XML?

Answer 1

There are two problems:
Incorrect syntax (incorrect cat > settings.xml << EOF instead of correct cat << EOF > settings.xml)
The end-string EOF must be at the beginning of the line but it isn't.
To run this from the command line:
Type cat << EOF > settings.xml and press ENTER.
Paste (or type by hand) your XML document (without the end-string EOF) and press ENTER.
Type EOF (make sure it is at the beginning of the line!) and press ENTER.
You will be presented with the command prompt. Type ls -l settings.xml to see the newly created file.
To run this from a script:
Open your text editor and follow the steps 1, 2 and 3.
Save it under the name, lets say script.sh and make it executable:
chmod 755 script.sh
Run it:
./script.sh
When the command promt is back, type ls -l settings.xml, to see the newly created file.