I have csr in text format. Need a self signed certificate

[sheersh1]

I currently using this
openssl x509 -signkey domain.key -in domain.csr -req -days 365 -out domain.crt

what correct code for create self sign certificate , with existing csr.

[kulkarniamit]

• Create a 2048 bit RSA private key and CSR

  $ openssl req -new -newkey rsa:2048 -nodes -keyout server.key \
  -subj "/C=US/ST=MA/L=BOS/O=Acme/OU=AcmeOU/CN=127.0.0.1" -out server.csr
  

• Generate self signed certificate for a given CSR

  $ openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt \
  -extfile <(printf "subjectKeyIdentifier=hash\nauthorityKeyIdentifier=keyid:always\nbasicConstraints=CA:TRUE")
  
  Certificate request self-signature ok
  subject=C = US, ST = MA, L = BOS, O = Acme, OU = AcmeOU, CN = 127.0.0.1