Incorrectly fulfilled SED?

Question

linux

there is a task to set the SED command to edit the config
, the command worked with the error
docker exec -it 4bbe177e62df sed -i 's/\(^dsn=\).*/\dsn=pgsql://hostaddr="${HOST}" dbname= "${DBNAME}" user="${USER}" password='"${PASS}"' options='-c client_min_messages=NOTICE' application_name='fs'/' /etc/freeswitch/vars.xml
sed: -e expression #1, char 27: unknown option to `s'
source file itself

<include>

  <X-PRE-PROCESS cmd="set" data="default_password=12344"/>
  <X-PRE-PROCESS cmd="set" data="dsn=pgsql://hostaddr=0.0.0.0 dbname=freeswitch user=test password='test111' options='-c client_min_messages=NOTICE' application_name='fs'"/>


  <X-PRE-PROCESS cmd="set" data="sound_prefix=$${sounds_dir}/en/us/callie"/>
  <X-PRE-PROCESS cmd="set" data="global_record_format=mp3"/>
  <X-PRE-PROCESS cmd="set" data="node=100"/>
  <X-PRE-PROCESS cmd="set" data="nodename=softswitch"/>



</include>

Answer 1

there is a task...
sed -i 's/\(^dsn=\).*/\dsn=pgsql://hostaddr="${HOST}" dbname="${DBNAME}" user="${USER }" password='"${PASS}"' options='-c client_min_messages=NOTICE' application_name='fs'/'
sed: -e expression #1, char 27: unknown option to `s'
Can you understand what should have been written here? not confused by nested single quotes and an abundance of '/' signs?