error converting YAML to JSON: yaml: did not find expected key - kubernetes

Question

I copy pasted a configMap file from an online tutorial and an error popped while trying to apply it. this is the file:
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx-config
labels:
tier: backend
data:
config : |
server {
index index.php index.html;
error_log /var/log/nginx/error.log;
access_log /var/log/nginx/access.log;
root /dir;
location / {
try_files $uri $uri/ /index.php?$query_string;
}
location ~ .php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+.php)(/.+)$;
fastcgi_pass php:9000;
fastcgi_index index.php;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME
$document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
}
}
this is the error:
line 28: did not find expected key

Answer 1

text alignment of the below line is incorrect. edited your question and corrected the format. try now. it should work
$document_root$fastcgi_script_name;

Answer 2

Should be:
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx-config
labels:
tier: backend
data:
config : |
server {
index index.php index.html;
error_log /var/log/nginx/error.log;
access_log /var/log/nginx/access.log;
root /dir;
location / {
try_files $uri $uri/ /index.php?$query_string;
}
location ~ .php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+.php)(/.+)$;
fastcgi_pass php:9000;
fastcgi_index index.php;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME
$document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
}
}
EDIT:
In your YAML the Kubernetes object definition in this case configmap, has an incorrect indentation.