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Merge pull request #5 from zhaohouf/refine
update for comments from support team
2 parents 6540e15 + f7b74e9 commit 1a97004

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‎ace-setup-mq/prep-mq.sh

Lines changed: 194 additions & 81 deletions
Original file line numberDiff line numberDiff line change
@@ -2,61 +2,104 @@
22
#Functions
33
# 0: print usage
44
printUsage(){
5-
echo -e "\033[1;33mThis script will try to cover following things:\033[0m"
5+
echo "Description: "
6+
echo "This script will try to cover following things:"
67
echo "1. Check user running this script has authority to execute MQSC commands"
78
echo "2. Check the available listener ports and define a new one if there is no available"
8-
echo "3. Define a channel and set authrec for it with the specified user"
9+
echo "3. Define a channel and set authrec for it with the specified user."
910
echo "4. Check the connectivity of the channel with specified user"
1011
echo "5. Define a topic or use existing topic object for topic string '$SYS/Broker' and set authrec for it"
11-
echo "6. List the useful info you can use to set in configuration.yaml for plugin.ace"
12-
echo -e "\033[1;31mNote: this script will cover most cases, but sometimes if you fail to create the mq objects, please contact IBM Instana support or contact IBM MQ support team for help. \033[0m"
13-
echo -e "\033[1;33mUsage: $0 -q <QMGR_NAME> -d <MQ_BIN_PATH> -u <AUTH_USER>\033[0m"
14-
echo -e "\033[1;33mExample $0 -q QM1 -d /opt/mqm/bin -u root\033[0m"
12+
echo "6. List the useful info you can use to set in configuration.yaml for plugin.ace and plugin.ibmmq"
13+
echo -e "\033[1;33mNote: this script will cover most cases, but sometimes if you fail to create the mq objects, please contact IBM Instana support or contact IBM MQ support team for help. \033[0m"
14+
echo ""
15+
echo "Usage: $0 -q <QMGR_NAME> -d <MQ_BIN_PATH> -u <AUTH_USER> [-c CHANNEL_NAME] [-m]"
16+
echo "Example: "
17+
echo " $0 -q QM1 -d /opt/mqm/bin -u root -c INSTANA.SVRCONN -m"
18+
echo " $0 -q QM1 -d /opt/mqm/bin -u root -m"
19+
echo " $0 -q QM1 -d /opt/mqm/bin -u root -c INSTANA.SVRCONN"
20+
echo " $0 -q QM1 -d /opt/mqm/bin -u root"
21+
echo ""
22+
echo "Arguments:"
23+
echo " -q <QMGR_NAME> Required. Specify the queuemanager name to execute the script with"
24+
echo " -d <MQ_BIN_PATH> Required. Specify the mq bin path"
25+
echo " -u <AUTH_USER> Required. Specify the user to give authority for mq/ace monitoring"
26+
echo " -c <CHANNEL_NAME> Optional. Specify the channel to be created. If not specify, the default channel INSTANA.SVRCONN will be used."
27+
echo " -m Optional. Set up MQ channel for MQ sensor only. If not set, both channel and topic will be created to support both mq sensor and ace sensor."
1528
}
1629

1730
# 1. Check the current user has authority to execute MQSC commands
1831
preCheck(){
1932
# Check user authority
2033
if groups | tr ' ' '\n' | grep -q '^mqm$'; then
21-
echo -e "\033[1;32mINFO: The user launched the script belongs to mqm group\033[0m"
34+
echo "INFO: The user launched the script belongs to mqm group"
2235
else
2336
echo -e "\033[1;31mERROR: The user launched the script doesn't belong to mqm group, please use an authorized user to execute MQSC commands\033[0m"
2437
exit 1
2538
fi
2639

2740
# check mq bin path
28-
echo "Check the MQ_BIN_PATH exists and file setmqenv exists"
41+
echo "INFO: Check the MQ_BIN_PATH exists and file setmqenv exists"
2942
if [ ! -d "$MQ_BIN_PATH" ] || [ ! -f "$MQ_BIN_PATH/setmqenv" ]; then
3043
echo -e "\033[1;31mERROR: The path $MQ_BIN_PATH or the file $MQ_BIN_PATH/setmqenv does not exist or both don't exist.\033[0m"
3144
exit 1
3245
else
33-
echo -e "\033[1;32mINFO: The $MQ_BIN_PATH and related file setmqenv exist.\033[0m"
46+
echo "INFO: The $MQ_BIN_PATH and related file setmqenv exist."
3447
fi
3548

3649
# Setup mq environment to accept mqsc command.
37-
echo -e "\033[1;33mINFO: Setup mq environment to accept mqsc command\033[0m"
50+
echo "INFO: Setup mq command environment to accept mqsc command"
3851
. $MQ_BIN_PATH/setmqenv -s
3952
if [ $? -eq 0 ]; then
40-
echo -e "\033[1;32mINFO: The environment has been set successfully. \033[0m"
53+
echo "INFO: The mq command environment has been set successfully."
4154
else
4255
echo -e "\033[1;31mERROR: Failed to set the environment\033[0m"
4356
exit 1
4457
fi
58+
59+
# check the nc command for linux and telnet for aix
60+
os_type=$(uname -s)
61+
if [[ "$os_type" == "Linux" ]]; then
62+
if ! command -v nc >/dev/null 2>&1; then
63+
echo -e "\033[1;31mERROR: nc command not found on Linux system, please relaunch the script after you install nc\033[0m"
64+
exit 1
65+
else
66+
echo "INFO: nc command is found"
67+
fi
68+
else
69+
if ! command -v telnet >/dev/null 2>&1; then
70+
echo -e "\033[1;31mERROR: telnet command not found on non-Linux system, please relaunch the script after you install telnet\033[0m"
71+
return 1
72+
else
73+
echo "INFO: telnet command is found"
74+
fi
75+
fi
4576
}
77+
78+
# check permission
79+
check_permission() {
80+
local permission=$1
81+
permissions=$(dspmqaut -m $QMGR_NAME -t qmgr -p $AUTH_USER)
82+
if echo "$permissions" | grep -q "$permission"; then
83+
return 0 # the permission exists
84+
else
85+
return 1 # the permission doesn't exist
86+
fi
87+
}
88+
4689
# 2. Set correct authority for $AUTH_USER to access QMGR.
4790
setQmgrAuth(){
48-
echo -e "\033[1;33mINFO: Set authority for user $AUTH_USER to access QMGR.\033[0m"
49-
echo "The user $AUTH_USER has following authority before setting:"
50-
echo "$(dmpmqaut -m $QMGR_NAME -t qmgr -p $AUTH_USER)"
51-
setmqaut -m "$QMGR_NAME" -t qmgr -p "$AUTH_USER" +connect +inq
52-
if [ $? -eq 0 ]; then
53-
echo -e "\033[1;32mINFO: The authority has been set succesfully for user $AUTH_USER\033[0m"
54-
echo "The user $AUTH_USER has following authority after setting:"
55-
echo "$(dmpmqaut -m $QMGR_NAME -t qmgr -p $AUTH_USER 2>&1)"
91+
echo "INFO: Check authority for user $AUTH_USER to access QMGR."
92+
PERMS=("connect" "inq")
93+
for PERM in "${PERMS[@]}"; do
94+
if ! check_permission $PERM; then
95+
setmqaut -m $QMGR_NAME -t qmgr -p $AUTH_USER +$PERM >/dev/null 2>&1
96+
PERMISSIONS_NEW+=("$PERM")
97+
fi
98+
done
99+
if [ ${#PERMISSIONS_NEW[@]} -ne 0 ]; then
100+
echo "INFO: Newly added permissions for user $AUTH_USER on QMGR $QMGR_NAME: ${PERMISSIONS_NEW[*]}"
56101
else
57-
echo -e "\033[1;31mERROR: Failed to set the authority for user $AUTH_USER to $QMGR_NAME\033[0m"
58-
echo -e "\033[1;31m$RESULT\033[0m"
59-
exit 1
102+
echo "INFO: No new permissions were added for user $AUTH_USER on QMGR $QMGR_NAME"
60103
fi
61104
}
62105

@@ -67,21 +110,18 @@ getListenerPort(){
67110
while read -r port; do
68111
if checkPort $port; then
69112
AVAILABLE_PORTS+=" $port"
70-
echo -e "\033[1;32mINFO: Port $port is open and accepting connections.\033[0m"
71-
else
72-
echo -e "\033[1;33mWARNING: Port $port is not open or not accepting connections.\033[0m"
73113
fi
74114
done <<< "$listener_ports"
75115
fi
76116
if [ -n "$AVAILABLE_PORTS" ]; then
77-
echo -e "\033[1;32mINFO: Found available ports: $AVAILABLE_PORTS\033[0m"
117+
echo "INFO: Found available ports: $AVAILABLE_PORTS"
78118
else
79119
echo "Create a listener as there is no listener port found"
80-
echo "DEFINE LISTENER($LISTENER_NAME) TRPTYPE(TCP) PORT($LISTENER_PORT)" | runmqsc "$QMGR_NAME"
81-
echo "START LISTENER($LISTENER_NAME) IGNSTATE(NO)" | runmqsc "$QMGR_NAME"
120+
echo "DEFINE LISTENER($LISTENER_NAME) TRPTYPE(TCP) PORT($LISTENER_PORT)" | runmqsc "$QMGR_NAME" >/dev/null 2>&1
121+
echo "START LISTENER($LISTENER_NAME) IGNSTATE(NO)" | runmqsc "$QMGR_NAME" >/dev/null 2>&1
122+
LISTENER_NEW=$LISTENER_NAME
82123
if checkPort $LISTENER_PORT; then
83124
AVAILABLE_PORTS+=" $LISTENER_PORT"
84-
echo -e "\033[1;32mINFO: Port $LISTENER_PORT is open and accepting connections.\033[0m"
85125
else
86126
echo -e "\033[1;31mERROR: Port $LISTENER_PORT is not open or not accepting connections. Please check and fix.\033[0m"
87127
exit 1
@@ -93,20 +133,11 @@ checkPort() {
93133
local port="$1"
94134
os_type=$(uname -s)
95135
if [ -z "$port" ] || [ "$port" -eq 0 ]; then
96-
echo -e "\033[1;31mERROR: Invalid port number: $port\033[0m"
97136
return 1
98137
fi
99138
if [[ "$os_type" == "Linux" ]]; then
100-
if ! command -v nc >/dev/null 2>&1; then
101-
echo -e "\033[1;31mERROR: nc command not found: $port\033[0m"
102-
return 1
103-
fi
104139
nc -zv localhost "$port" >/dev/null 2>&1
105140
else
106-
if ! command -v telnet >/dev/null 2>&1; then
107-
echo -e "\033[1;31mERROR: telnet command not found: $port\033[0m"
108-
return 1
109-
fi
110141
telnet localhost "$port" >/dev/null 2>&1
111142
fi
112143
}
@@ -115,10 +146,18 @@ checkPort() {
115146
prepChannelAndTopic(){
116147
CHECK_CHANNEL=$(echo "DISPLAY CHANNEL($CHANNEL_NAME)" | runmqsc "$QMGR_NAME")
117148
if [[ "$CHECK_CHANNEL" != *"not found"* ]]; then
118-
echo -e "\033[1;31mERROR: The channel exists, please try another CHANNEL_NAME or delete the existing channel and rerun the script. \033[0m"
119-
echo -e "\033[1;31mYou can use revert-mq.sh to delete this channel and revert all created objects:\033[0m"
120-
echo -e "./revert-mq.sh -q $QMGR_NAME -d $MQ_BIN_PATH -u $AUTH_USER -l $LISTENER_NAME -c $CHANNEL_NAME"
121149
echo "$CHECK_CHANNEL"
150+
echo -e "\033[1;31mERROR: The channel $CHANNEL_NAME already exists, please use a different name or delete the existing channel and rerun the script. \033[0m"
151+
152+
if [[ ${#PERMISSIONS_NEW[@]} -ne 0 || -n "$LISTENER_NEW" ]]; then
153+
echo -e "\033[1;31mNOTE: Following objects/permissions are changed or created, please revert them manually or use script revert-mq.sh to clean up before rerunning: \033[0m"
154+
if [ ${#PERMISSIONS_NEW[@]} -ne 0 ]; then
155+
echo "Permissions added on QMGR $QMGR_NAME for user $AUTH_USER: ${PERMISSIONS_NEW[*]}"
156+
fi
157+
if [ -n "$LISTENER_NEW" ]; then
158+
echo "Listener new created: $LISTENER_NEW"
159+
fi
160+
fi
122161
exit 1
123162
fi
124163
# Execute the MQSC commands
@@ -129,60 +168,126 @@ prepChannelAndTopic(){
129168
EXPECTED_OUTPUT="AMQ9783I: Channel will run using MCAUSER('$AUTH_USER')."
130169

131170
if [[ "$OUTPUT" == *"$EXPECTED_OUTPUT"* ]]; then
132-
echo -e "\033[1;32mINFO: The channel authority is set successfully with output:\033[0m"
133-
echo -e "\033[1;32m$EXPECTED_OUTPUT\033[0m"
134-
EXISTING_TOPIC=$(echo "dis TOPIC(*) WHERE(TOPICSTR EQ '$TOPIC_STR')" | runmqsc "$QMGR_NAME")
135-
# Create a topic if it doesn't exist
136-
if [[ $EXISTING_TOPIC == *"not found"* ]]; then
137-
echo "Topic object with TOPICSTR '$TOPIC_STR' not found. Creating a new one..."
138-
echo "DEFINE TOPIC($TOPIC_NAME) TOPICSTR('$TOPIC_STR')" | runmqsc "$QMGR_NAME"
139-
else
140-
echo -e "\033[1;32mINFO: Topic object with TOPICSTR '$TOPIC_STR' already exists.\033[0m"
141-
TOPIC_NAME=$(echo "$EXISTING_TOPIC" | sed -n '/TOPIC(\*/d; s/^.*TOPIC(\([^)]*\)).*$/\1/p')
142-
fi
143-
# Set authrec for the topic
144-
echo "$MQSC_SET_AUTH_4_TOPIC" | runmqsc "$QMGR_NAME"
145-
echo "Set authrec for the topic $TOPIC_NAME"
146-
# Verify the authrec exists
147-
EXISTING_AUTHREC=$(echo "DIS AUTHREC PROFILE($TOPIC_NAME) OBJTYPE(TOPIC)" | runmqsc "$QMGR_NAME")
148-
# Print the result
149-
if [[ $EXISTING_AUTHREC == *"not found"* ]]; then
150-
echo -e "\033[1;31mERROR: AUTHREC for topic '$TOPIC_NAME' does not exist.Please check the commands execution result\033[0m"
151-
echo "$EXISTING_AUTHREC"
152-
exit 1
153-
else
154-
echo -e "\033[1;32mINFO: AUTHREC for topic '$TOPIC_NAME' exists.\033[0m"
171+
echo "INFO: The channel authority is set successfully with output: $EXPECTED_OUTPUT"
172+
if [ "${TYPE}" != "mq" ]; then
173+
EXISTING_TOPIC=$(echo "dis TOPIC(*) WHERE(TOPICSTR EQ '$TOPIC_STR')" | runmqsc "$QMGR_NAME")
174+
# Create a topic if it doesn't exist
175+
if [[ $EXISTING_TOPIC == *"not found"* ]]; then
176+
echo "INFO: Topic object with TOPICSTR '$TOPIC_STR' not found. Creating a new one..."
177+
echo "DEFINE TOPIC($TOPIC_NAME) TOPICSTR('$TOPIC_STR')" | runmqsc "$QMGR_NAME"
178+
TOPIC_NEW=$TOPIC_NAME
179+
else
180+
echo "INFO: Topic object with TOPICSTR '$TOPIC_STR' already exists."
181+
TOPIC_NAME=$(echo "$EXISTING_TOPIC" | sed -n '/TOPIC(\*/d; s/^.*TOPIC(\([^)]*\)).*$/\1/p')
182+
fi
183+
# Set authrec for the topic
184+
echo "$MQSC_SET_AUTH_4_TOPIC" | runmqsc "$QMGR_NAME"
185+
echo "INFO: Set authrec for the topic $TOPIC_NAME"
186+
# Verify the authrec exists
187+
EXISTING_AUTHREC=$(echo "DIS AUTHREC PROFILE($TOPIC_NAME) OBJTYPE(TOPIC) PRINCIPAL('$AUTH_USER')" | runmqsc "$QMGR_NAME")
188+
# Print the result
189+
if [[ $EXISTING_AUTHREC == *"not found"* ]]; then
190+
echo -e "\033[1;31mERROR: AUTHREC for topic '$TOPIC_NAME' does not exist. Please fix the issue according to the commands execution result. \033[0m"
191+
echo "$EXISTING_AUTHREC"
192+
exit 1
193+
else
194+
echo "INFO: AUTHREC for topic '$TOPIC_NAME' exists."
195+
fi
155196
fi
156197
else
157-
echo -e "\033[1;31mERROR: The channel authority is failed to set. Check the blocking AUTHREC and fix it.\033[0m"
198+
echo -e "\033[1;31mERROR: The channel authority is failed to set. Fix it by removing the blocking AUTHREC and then rerun the script.\033[0m"
158199
echo -e "$OUTPUT"
159-
exit 1
200+
echo -e "\033[1;31mNOTE: Following objects/permissions are changed or created, please revert them manually or use script revert-mq.sh to clean up before rerunning: \033[0m"
201+
if [ ${#PERMISSIONS_NEW[@]} -ne 0 ]; then
202+
echo "Permissions added on QMGR: $QMGR_NAME for user: $AUTH_USER: ${PERMISSIONS_NEW[*]}"
203+
fi
204+
if [ -n "$LISTENER_NEW" ]; then
205+
echo "Listener new created: $LISTENER_NEW"
206+
fi
207+
CHANNEL_AUTHREC_NEW=$(echo "DIS AUTHREC PROFILE($CHANNEL_NAME) OBJTYPE(CHANNEL) PRINCIPAL('$AUTH_USER')")
208+
CHLAUTH_NEW=$(echo "DIS CHLAUTH($CHANNEL_NAME) TYPE(BLOCKUSER)")
209+
echo "Channel new created: $CHANNEL_NAME"
210+
echo "AUTHREC new added for channel $CHANNEL_NAME:"
211+
echo "$CHANNEL_AUTHREC_NEW"
212+
echo "CHLAUTH new added for channel $CHANNEL_NAME:"
213+
echo "$CHLAUTH_NEW"
214+
exit 1
160215
fi
161216
}
162217

163218
# 5. Print out useful info you need in setting configuration.yaml
164219
printConnInfo(){
165-
echo -e "\033[1;32mHint: Please set the configuration.yaml for ACE sensor with following info:\033[0m"
166-
echo -e "\033[1;32m queuemanagerName: $QMGR_NAME\033[0m"
167-
echo -e "\033[1;32m mqport: $AVAILABLE_PORTS (choose one)\033[0m"
168-
echo -e "\033[1;32m channel: $CHANNEL_NAME\033[0m"
169-
echo -e "\033[1;32m mqUsername: $AUTH_USER\033[0m"
220+
221+
echo -e "\033[1;32mINFO: You have prepared the MQ objects for Instana monitoring well. Following Objects and Permissions are new added:\033[0m"
222+
if [ ${#PERMISSIONS_NEW[@]} -ne 0 ]; then
223+
echo -e "\033[1;32mPermissions added on QMGR $QMGR_NAME for user $AUTH_USER: \033[0m"
224+
echo "${PERMISSIONS_NEW[*]}"
225+
fi
226+
if [ -n "$LISTENER_NEW" ]; then
227+
echo -e "\033[1;32mListener new created: \033[0m"
228+
echo "$LISTENER_NEW"
229+
fi
230+
echo -e "\033[1;32mChannel new created: \033[0m"
231+
echo "$CHANNEL_NAME"
232+
echo -e "\033[1;32mAUTHREC and CHLAUTH new added for channel $CHANNEL_NAME:\033[0m"
233+
echo "CHLAUTH($CHANNEL_NAME) TYPE(BLOCKUSER) USERLIST('nobody') DESCR('Block all users except authorized users')"
234+
echo "AUTHREC profile($CHANNEL_NAME) objtype(channel) PRINCIPAL('$AUTH_USER') AUTHADD(ALL)"
235+
if [ "${TYPE}" != "mq" ]; then
236+
if [ -n "$TOPIC_NEW" ]; then
237+
echo -e "\033[1;32mTopic new created: $TOPIC_NEW\033[0m"
238+
fi
239+
echo -e "\033[1;32mAUTHREC new added for topic $TOPIC_NAME:\033[0m"
240+
echo "AUTHREC profile($TOPIC_NAME) objtype(topic) PRINCIPAL('$AUTH_USER') AUTHADD(ALL)"
241+
echo ""
242+
243+
echo -e "\033[1;32mYou can set the configuration.yaml for ACE sensor with following info:\033[0m"
244+
echo "queuemanagerName: $QMGR_NAME"
245+
echo "mqport: $AVAILABLE_PORTS (choose one)"
246+
echo "channel: $CHANNEL_NAME"
247+
echo "mqUsername: $AUTH_USER"
248+
echo ""
249+
fi
250+
251+
echo -e "\033[1;32mYou can set the configuration.yaml for MQ sensor with following info:\033[0m"
252+
echo "QUEUE_MANAGER_NAME_1: $QMGR_NAME"
253+
echo "port: $AVAILABLE_PORTS (choose one)"
254+
echo "channel: $CHANNEL_NAME"
255+
echo "username: $AUTH_USER"
256+
echo ""
257+
170258
echo -e "\033[1;32mThis tool only covers basic info, for other info, like user password and SSL related info, please check manually and set properly.\033[0m"
171-
echo -e "\033[1;33mINFO: If you want to revert the authority and clean up the objects created, please make sure you have downloaded the revert-mq.sh script and run like following: \033[0m"
172-
echo "./revert-mq.sh -q $QMGR_NAME -d $MQ_BIN_PATH -u $AUTH_USER -l $LISTENER_NAME -c $CHANNEL_NAME -t $TOPIC_NAME"
259+
echo -e "\033[1;33mINFO: To revert the permissions added and objects created, download the revert-mq.sh script and run like following: \033[0m"
260+
local opt_p=''
261+
local opt_l=''
262+
local opt_t=''
263+
if [ ${#PERMISSIONS_NEW[@]} -ne 0 ]; then
264+
opt_p="-p '${PERMISSIONS_NEW[*]}'"
265+
fi
266+
if [ -n "$LISTENER_NEW" ]; then
267+
opt_l="-l $LISTENER_NEW"
268+
fi
269+
if [ -n "$TOPIC_NEW" ]; then
270+
opt_t="-t $TOPIC_NEW"
271+
fi
272+
echo "./revert-mq.sh -q $QMGR_NAME -d $MQ_BIN_PATH -u $AUTH_USER $opt_p $opt_l -c $CHANNEL_NAME $opt_t"
173273
}
174274

175275

176276
# 0: Init
177277
# Define the variables
178-
CHANNEL_NAME='INSTANA.ACE.SVRCONN'
278+
CHANNEL_NAME='INSTANA.SVRCONN'
179279
TOPIC_NAME='INSTANA.ACE.BROKER.TOPIC'
180280
TOPIC_STR='$SYS/Broker'
181-
LISTENER_NAME='INSTANA.ACE.LST'
281+
LISTENER_NAME='INSTANA.LST'
182282
LISTENER_PORT='2121'
183283
AVAILABLE_PORTS=''
284+
PERMISSIONS_NEW=()
285+
LISTENER_NEW=''
286+
TOPIC_NEW=''
287+
TYPE="ace"
288+
184289
# Check the parameters
185-
while getopts ":q:d:u:" opt; do
290+
while getopts ":q:d:u:c:m" opt; do
186291
case ${opt} in
187292
q)
188293
QMGR_NAME=${OPTARG}
@@ -193,6 +298,12 @@ while getopts ":q:d:u:" opt; do
193298
u)
194299
AUTH_USER=${OPTARG}
195300
;;
301+
c)
302+
CHANNEL_NAME=${OPTARG}
303+
;;
304+
m)
305+
TYPE="mq"
306+
;;
196307
?)
197308
printUsage
198309
exit 1
@@ -202,15 +313,17 @@ done
202313
shift $(($OPTIND - 1))
203314

204315
if [[ -z "$QMGR_NAME" || -z "$MQ_BIN_PATH" || -z "$AUTH_USER" ]]; then
205-
echo -e "\033[1;31mERROR: These arguments are required, but seems they are not set correctly."
206-
echo "QMGR_NAME: $QMGR_NAME"
207-
echo "MQ_BIN_PATH: $MQ_BIN_PATH"
208-
echo "AUTH_USER:$AUTH_USER"
316+
echo -e "\033[1;31mERROR: These arguments are required, but seems they are not set correctly.\033[0m"
317+
echo "-q <QMGR_NAME> -d <MQ_BIN_PATH> -u <AUTH_USER>"
318+
echo ""
209319
printUsage
210320
exit 1
211321
fi
322+
if [ -z "$CHANNEL_NAME" ]; then
323+
CHANNEL_NAME='INSTANA.SVRCONN'
324+
fi
212325

213-
# Define the MQSC commands fro channel creating
326+
# Define the MQSC commands for channel creating
214327
read -r -d '' MQSC_CHECK_CHANNEL << EOF
215328
DEFINE CHANNEL($CHANNEL_NAME) CHLTYPE(SVRCONN) TRPTYPE(TCP) MCAUSER('$AUTH_USER')
216329
SET CHLAUTH($CHANNEL_NAME) TYPE(BLOCKUSER) USERLIST('nobody') DESCR('Block all users except authorized users')

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