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path: root/src/mkinst.c
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/* This file is part of Eclat.
   Copyright (C) 2013 Sergey Poznyakoff.
 
   Eclat is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.
 
   Eclat is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with Eclat.  If not, see <http://www.gnu.org/licenses/>. */

#include "eclat.h"
#include "mkinst-cl.h"

/* format:
   
   dev-index:subnet:description:priv-ip:sgs:DOT:sip-count:sips
      0        1         2         3     4   5      6      7
      
   where:

   dev-index   device index
   subnet      subnet ID
   sgs         a comma-separated list of security group IDs
   DOT         delete the interface on termination: true or false
   sip-count   number of secondary IP addresses to assign
   sips        a comma-separated list of secondary IP addresses
   
   only dev-index and subnet are mandatory;
   either sip-count or sips can be specified, but not both.
*/
void
add_iface(struct ec2_query *q, int ifno, char *ifspec)
{
	struct wordsplit ws;
	char *bufptr = NULL;
	size_t bufsize = 0;
	char *p;
	int i;
	
	ws.ws_delim = ":";
	if (wordsplit(ifspec, &ws, WRDSF_NOVAR | WRDSF_NOCMD | WRDSF_DELIM))
		die(EX_SOFTWARE,
		    "failed to split string %s: %s",
		    ifspec,
		    wordsplit_strerror(&ws));
	
	switch (ws.ws_wordc) {
	default:
		die(EX_USAGE,
		    "bad number of parts in interface specification \"%s\": %d",
		    ifspec, ws.ws_wordc);
	case 8:
		for (i = 1, p = strtok(ws.ws_wordv[7], ","); p;
		     i++, p = strtok(NULL, ",")) {
			grecs_asprintf(&bufptr, &bufsize,
				       "NetworkInterface.%d."
				       "PrivateIpAddresses.%d.PrivateIpAddress",
				       ifno, i);
			eclat_query_add_param(q, bufptr, p);
		}
		/* fall through */
	case 7:
		if (ws.ws_wordv[6][0]) {
			grecs_asprintf(&bufptr, &bufsize,
				       "NetworkInterface.%d."
				       "SecondaryPrivateIpAddressCount",
				       ifno);
			eclat_query_add_param(q, bufptr, ws.ws_wordv[6]);
		}
	case 6:
		if (ws.ws_wordv[5][0]) {
			grecs_asprintf(&bufptr, &bufsize,
				       "NetworkInterface.%d."
				       "DeleteOnTermination",
				       ifno);
			eclat_query_add_param(q, bufptr, ws.ws_wordv[5]);
		}
	case 5:
		if (ws.ws_wordv[4])
			for (i = 1, p = strtok(ws.ws_wordv[4], ","); p;
			     i++, p = strtok(NULL, ",")) {
				grecs_asprintf(&bufptr, &bufsize,
					       "NetworkInterface.%d."
					       "SecurityGroupId.%d",
					       ifno, i);
				eclat_query_add_param(q, bufptr, p);
			}
	case 4:
		if (ws.ws_wordv[3]) {
			grecs_asprintf(&bufptr, &bufsize,
				       "NetworkInterface.%d.PrivateIpAddress",
				       ifno);
			eclat_query_add_param(q, bufptr, ws.ws_wordv[3]);
		}
	case 3:
		if (ws.ws_wordv[2]) {
			grecs_asprintf(&bufptr, &bufsize,
				       "NetworkInterface.%d.Description",
				       ifno);
			eclat_query_add_param(q, bufptr, ws.ws_wordv[2]);
		}
	case 2:
		if (!ws.ws_wordv[1][0])
			die(EX_USAGE,
			    "no subnet ID in interface specification \"%s\"",
			    ifspec);
	}
	grecs_asprintf(&bufptr, &bufsize, "NetworkInterface.%d.SubnetId",
		       ifno);
	eclat_query_add_param(q, bufptr,
			      ws.ws_wordv[1][0] ? ws.ws_wordv[1] : "0");

	if (ws.ws_wordv[0][0]) {
		grecs_asprintf(&bufptr, &bufsize,
			       "NetworkInterface.%d.DeviceIndex",
			       ifno);
		eclat_query_add_param(q, bufptr, ws.ws_wordv[0]);
	}
	
	wordsplit_free(&ws);
	free(bufptr);
}

int
eclat_run_instances(eclat_command_env_t *env, int argc, char **argv)
{
	int i;
	char *bufptr = NULL;
	size_t bufsize = 0;
	struct grecs_list_entry *ep;
	struct ec2_query *q = env->query;
	char *p;
	int iface_no = 1;
	
	parse_options(env, argc, argv);

	eclat_query_add_param(q, "ImageId", ami);
	p = strchr(instance_count, '-');
	eclat_query_add_param(q, "MinCount", instance_count);
	if (p) {
		*p++ = 0;
		eclat_query_add_param(q, "MaxCount", p);
	} else
		eclat_query_add_param(q, "MaxCount", instance_count);
	
	if (keypair)
		eclat_query_add_param(q, "KeyName", keypair);

	if (secgrp) {
		for (i = 1, ep = secgrp->head; ep; ep = ep->next, i++) {
			grecs_asprintf(&bufptr, &bufsize,
				       "SecurityGroup.%d", i);
			eclat_query_add_param(q, bufptr, ep->data);
		}
	}

	if (type)
		eclat_query_add_param(q, "InstanceType", type);

	if (zone)
		eclat_query_add_param(q, "Placement.AvailabilityZone", zone);
	
	if (kernel)
		eclat_query_add_param(q, "KernelId", kernel);

	if (ramdisk)
		eclat_query_add_param(q, "RamdiskId", ramdisk);

	if (devmap)
		eclat_encode_devmap(q, devmap);
		
	if (monitor)
		eclat_query_add_param(q, "Monitoring.Enabled", "true");

	if (disable_term)
		eclat_query_add_param(q, "DisableApiTermination", "true");

	if (shutdown_behavior)
		eclat_query_add_param(q, "InstanceInitiatedShutdownBehavior",
				      "true");
	if (placement_group)
		eclat_query_add_param(q, "Placement.GroupName",
				      placement_group);

	if (tenancy)
		eclat_query_add_param(q, "Placement.Tenancy", tenancy);

	if (subnet)
		eclat_query_add_param(q, "SubnetId", subnet);

	if (private_ip)
		eclat_query_add_param(q, "PrivateIpAddress", private_ip);

	/* FIXME: I'm not at all sure whether this is the right way of
	   doing it. */
	if (privip) {
		for (i = 1, ep = privip->head; ep; i++, ep = ep->next) {
			grecs_asprintf(&bufptr, &bufsize,
				       "NetworkInterface.1."
				       "PrivateIpAddresses.%d.PrivateIpAddress",
				       i);
			eclat_query_add_param(q, bufptr, ep->data);
		}
		iface_no++;
	} else if (secipcount) {
		eclat_query_add_param(q,
				      "NetworkInterface.1."
				      "SecondaryPrivateIpAddressCount",
				      secipcount);
		iface_no++;
	}

	if (iface)
		for (ep = iface->head; ep; ep = ep->next)
			add_iface(q, iface_no++, ep->data);
	
	if (profile_name)
		eclat_query_add_param(q,
				      strncmp(profile_name, "arn:", 4) == 0 ?
				      "IamInstanceProfile.Arn" :
				      "IamInstanceProfile.Name",
				      profile_name);

	if (ebs_opt)
		eclat_query_add_param(q, "EbsOptimized", "true");

	if (user_data) {
		size_t enclen;
		
		eclat_base64_encode((unsigned char *)user_data,
				    strlen(user_data),
				    (unsigned char**) &p, &enclen);
		
		eclat_query_add_param(q, "UserData", p);
		free(p);
	}
	
	return 0;
}

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